We'll miss you, Perk. Hell, we already do.

Sports Illustrated’s Ian Thomsen offered a great analysis of the Perkins trade. Which sucks to read, I warn you. (WEEI)

“First of all, I was just wondering who the Celtics are now?” Thomsen said of his initial reaction to the trade. “Before they signed [Shaquille O'Neal] last summer, I was wondering who they were. Because they were outrebounded in the finals, the Lakers front line looked too big for them, even when Perkins was playing. But then when they got Shaq, and you thought about Shaq and Perkins as the front line, now you thought that they were going to have an edge to them, they were going to be able to play down low, they’d always have a big man in there, for 48 minutes, potentially.

“And now again, I’m just not sure who they are now, what the edge is. There are things that they can no longer take for granted: that they can guard Dwight Howard one on one, that they’re going to throw a lot of size at the Lakers — like a big offensive line that creates room for [Rajon] Rondo and all the other guys.

“So, it’s just now going to be interesting to see what’s going to be the new identity of the team. Because no matter what they do, if they get Troy Murphy or anybody else, it won’t be able to replicate what they had in Perkins. And Shaq just won’t be able to give them enough minutes, even if he’s healthy — 25, 28, 30 minutes, maybe.” …

“It’s like a chicken-or-egg thing,” he said. “Do you respond to matchups of other teams or do you create matchups of your own that they can’t deal with? So now, against Miami, was one reason Boston had an edge over Miami this year because of guys like Kendrick Perkins and the physical edge that they clearly have over Miami? So, you can say, OK, you don’t need to worry about Miami’s big men, so you can afford to get rid of Kendrick Perkins. But in letting go of him, are you letting go of your inherent advantage over them. And now are you sort of playing their game as opposed to making them play your game. They’re less of an imposing team without Perkins. They’re playing more to Miami’s style. …

Added Thomsen: “If they do get Troy Murphy, it’s an exceptionally deep team with a lot of different options. But we all know that in the playoffs, it’s that hard edge that overcomes everything. It’s playing hard and playing physically and just fighting that often makes the difference. We’ll have to see how this Celtics team responds in that category.”

The Celtics used to have an identity. They used to have one thing — toughness — that separated them from any other team in the league. What is their identity now? What do they do better than any other team? I don’t know. I really don’t.

The plan was always about size, not just to overthrow the Lakers but also to pound the Heat at their weakest position, to limit Dwight Howard as much as possible, and to physically dominate lesser frontcourts. Rajon Rondo is great, of course, and Paul Pierce and Ray Allen, obviously, can still play. But the 2010-’11 Celtics were constructed to overwhelm teams with length, tenacity and toughness.

The Celtics added brawn and bulk this past offseason, signing the O’Neal brothers — we suspected, at least — because they knew, without a deep stable of big men, one injury to Kendrick Perkins could mean the difference between winning and losing a championship. Instead of sticking to that plan, the Celtics move forward with a center rotation consisting of A) a 6’9, round mound of no rebound who takes charges quite well but, again, is 6’9, B) two way-past-their-prime O’Neals, who aren’t healthy now and may never be, and C) a chair-throwing Nenad who can’t rebound and whose bald spot makes him look far older than his 27 years. So I ask you: what happened to the plan, to the blueprint that was supposed to bring Boston a championship?

Before I move forward, let me admit that I loved Kendrick Perkins as a player, as a person, and as a reporter on the few occasions I got to interview Perkins. But I’m not allowing that to cloud my judgment of this trade. The thoughts in this column are unbiased, and the thing I care most about moving forward — though I will miss Perk, as a fan — is how this trade affects the Boston Celtics’ chances to win a championship.

There is a chance this trade works out perfectly. If the O’Neals both (miraculously) return to good health, the Celtics will remain deep, strong, big, and tough. They will still have a frontcourt rotation that rivals ( and, mostly, puts to shame) any other team’s. Even if only one of the O’Neals returns, a Glen Davis-Jermaine/Shaq-Nenad Krstic center rotation can hold its own. And the C’s will have added Jeff Green to the bench, a bench that clearly needed some help and has been inconsistent (to say it nicely) this entire season.

There’s a line of reasoning, and it holds some clout, which says the Celtics were fine without Perkins over the first half of the season. That’s true. Their defense survived (thrived, even), and Shaq fit right in with the C’s starters. When Perkins returned, the Celtics were already 33-10 and ahead of the entire Eastern Conference. The Celtics can win without Perkins, there’s no question. But during most of that time, the O’Neals were (relatively) healthy.

Doesn’t this new plan rely far too heavily on two O’Neals, who have COMBINED to play in only 53 games this season? Two O’Neals whose bodies have proven incredibly unreliable? Two O’Neals who can’t stay on the court and can’t reasonably be expected to provide nightly support? Two O’Neals whose careers — not just seasons — have been marred by injury after injury?

What happens if both O’Neals miss a playoff game? Are you happy about the thought of Glen Davis, Troy Murphy and Nenad Krstic trotting out alongside KG to battle Pau Gasol and Andrew Bynum? Or Dwight Howard? Or even trying to overwhelm the Heat’s thin frontcourt (which wouldn’t look nearly as thin against the Davis-Murphy-Krstic trio)? Do those thoughts intrigue you? I doubt it. The Celtics were built on size and toughness. Unless the O’Neals get healthy for the stretch run, the Celtics lost a large part of their identity by shipping Kendrick Perkins away. Kevin Garnett remains a Boston Celtics, and he’s their heart. But Boston’s imposing frontcourt will no longer impose, unless the O’Neals are healthy. An “unless” that — if you’ve been paying attention to the C’s injury list — doesn’t inspire hope.

That the Celtics’ championship hopes may now rest on the O’Neal brothers’ health isn’t even what bothers me most. No, I’m most bothered that the Celtics didn’t have to take such a big risk. If they sat steady at the trade deadline, without making a single move, the Celtics would have remained the favorites to win the NBA championship. They had a tried and true method of winning. If Garnett had stayed healthy in ’09, and Perk in ’10, the Celtics possibly could have been three-time defending champions right now. And they did all that winning with Perk as their center, with an unapologetic mean streak as their calling card.

When you thought of the Celtics’ championship hopes yesterday at 2:00 p.m., you knew what the Celtics were. A rugged crew. A team that rose to every challenge, even in defeat. A team that was almost always physically and mentally tougher than its opponent, and never, ever backed down. They were Kevin Garnett screaming his head off, and they were Kendrick Perkins standing by his side to provide the muscle and intimidation (not to mention the wondrous post defense). They were a well-oiled machine consisting of players who knew each other in and out, and had never lost a playoff series when healthy.

Now? The Celtics may be looking forward to 40 minutes of center Glen Davis (who, I remind you, is 6’9) in every playoff game, which may not prove destructive but certainly isn’t ideal. The Celtics may use Nenad Krstic, and his underwhelming 12.2 rebound rate, as Davis’ lone backup. If the O’Neals aren’t healthy — and is there any reasonable reason to believe they will be? — the Celtics won’t be big, bad and strong, like they had planned to be ever since losing Game 7 and seeing the Lakers celebrate an NBA title. They won’t push around opponents to the same extent, and they certainly won’t scowl as much. Whether the Celtics scowl doesn’t seem important, but Glen Davis and Nenad Krstic don’t intimidate people. Kendrick Perkins does. Shaq and Jermaine, if healthy (such a brutal if), might.

Yesterday at 2:00 p.m., the Boston Celtics were the favorites to win the 2011 NBA championship. When the season’s all said and done, they still might win a title. I’m not ruling that out, not by any means. Jeff Green, for all the intelligent people (rightfully) saying he’s overrated, is still a versatile, athletic player who will improve Boston’s bench and give Doc Rivers more options. Nenad Krstic, for all my complaints about his soft nature, possesses a few worthy skills and isn’t a terrible option off the bench. The O’Neals might return to full health, and Perkins might prove to be just what Danny Ainge banked that he would be: expendable.

But why risk it? Why wake up on February 24, the day of the trade deadline, and decide, “Ya know what? Let’s change everything today — our philosophy, our starting lineup, our chemisty. Let’s just change it all. Even though we’re NBA favorites if we just stand pat, and even better than that if we keep our core intact while trading for a Shane Battier type (or even an Anthony Parker type), let’s ship Kendrick Perkins away. Let’s roll the dice.”? Why?

On the periphery, you can argue the trade makes sense. Perkins, for everything he brought the Celtics, had flaws, and — if the O’Neals are still alive by the time the postseason rolls around — Perk’s presence would have made for a very full frontcourt. They had a gaping hole at backup small forward, and Green fills that. The Celtics may also consider Green a better piece for the future than Perk, though that reasoning could be argued and this shouldn’t be about the future. But there’s a reason the Celtics imported so much size: They learned first hand how a single injury can impact an NBA championship. They learned first hand how much they needed Kendrick Perkins. So they implemented a plan focused primarily on adding size, and more size.

Yesterday, the Celtics ditched that plan and decided to go a different route. It wasn’t because they didn’t think they could sign Kendrick Perkins; he told me he couldn’t see himself anyplace but Boston, and a report said he would have accepted a $30 million contract from Boston (which, for a player of Perk’s caliber and size, amounts to chump change). Even if the Celtics did fear losing Perk for nothing, trying to win a title with him now STILL made sense. It wasn’t because they worried about his health, because they offered him a contract extension a few weeks ago. It wasn’t because the current plan had proven itself the wrong plan, because the Celtics, with Perk, were the NBA’s favorites. It was because Danny Ainge felt adding Jeff Green and Nenad Krstic, while subtracting Kendrick Perkins and Nate Robinson, would improve the Boston Celtics.

You know what they say: If it ain’t broke, trade your 6’11, tough-as-nails player away, while risking your teams’ very identity in the process, and potentially hinging your team’s title aspirations on the health of two immensely fragile old men. The Celtics didn’t have to take this risk. That’s what I don’t understand, no matter how hard I try.

I’m still trying to understand the trade, but I’ve come to terms with the fact that I’ll never understand it. Not unless Shaq and Jermaine have been fooling us all along and are actually 100% healthy, in which case the trade almost makes sense. But I’m moving on, for now, until I write my “goodbye, Perk” and “goodbye, Nate” posts, which will inevitably cause me to revisit my homicidal feelings for Danny Ainge.

The Celtics also traded Marquis Daniels today, along with cash, for the Sacramento Kings’ 2017 second-round pick. Coupled with the Erden/Harangody for a second-round pick swap, the Celtics now have three roster spots open for buyout candidates. Which would be fine, if the buyout list included a solid, tough big man known for his physical presence.

Instead, there’s Troy Murphy. And Leon Powe (who, after a few knee surgeries, isn’t quite the same player Celtics fans remember). And whatever other scraps get bought out because their current teams don’t want them. Now, Murphy’s not half bad. He can shoot threes, and even rebounds well. But these Celtics are known for being a tough, physical bunch. Murphy’s not scaring anybody. He’s not going to combat Dwight Howard. He’s not going to counteract Andrew Bynum. He’s not going to send Chris Bosh into a funk. Neither is Powe. Neither is any other buyout candidate the C’s could add.

For now, at least, the Celtics have signed D-Leaguer Chris Johnson. He’s 6’11 and could use a square meal, but has impressive agility for a big man. I’d be surprised if he stays on the Celtics for more than these ten days, but, then again, I no longer have any idea what Danny Ainge is trying to accomplish.

Kendrick Perkins, who was diagnosed with a strained MCL and originally expected to miss at least the next three games, could return during the C’s road trip.

Hold on, I’m a little confused. Isn’t “I’m a celtic, man” the reason Perk was hurt in the first place, rather than the reason he might return on this trip?

I interrupt the regularly scheduled trade rumors to bring you news that will, quite appropriately, induce a scowl. Kendrick Perkins, who banged his knee yesterday and was diagnosed with a bruised knee, actually suffered a strained MCL. The injury is to Perk’s left knee, or, in other words, the one that had been his healthy knee.

According to CSNNE’s Jessica Camerato, Perkins is listed as day-to-day. But he is now expected to miss at least the remainder of Boston’s Western Conference road trip, which concludes Monday after games in Denver, Los Angeles (Clippers) and Utah.

The Celtics could be considering a trade of Semih Erden, whose size and potential intrigues teams such as the Cavaliers (who could offer Anthony Parker in return). But Perk’s injury could cause the Celtics to lean towards keeping the Turk. Though Perk is listed as day-to-day, this injury only highlights the fragile nature of Boston’s roster, and their need to hold on to any and all capable big men.

Get well soon, Perk. May your day-to-day listing be true.

I’m about to make a claim, one which may sound ludicrous based on certain events from this season (the Kevin Garnett ball tap being one of them). It may sound even more ludicrous considering that Kendrick Perkins earned his third technical foul last night, giving him a “three technicals in eleven games” pace which would equate to 22 technical fouls over the course of an 82-game season. But the Celtics are improving at not fighting back. I swear.

Think back to the Orlando game. Dwight Howard shook Perkins loose with an elbow, and Perk didn’t react. Hedo Turkoglu shoved Garnett in the back, and Garnett went tumbling into the photographers. He stood up, Rajon Rondo whispered sweet nothings into his ear, and then Garnett didn’t react. Orlando picked up technical foul after technical foul for responding to Boston’s aggressive tactics, yet, in a way that avoided history’s pattern, Boston didn’t fight back.

“I think we were the instigators, not the retaliators,” Perkins told reporters after the game, explaining why Orlando picked up so many technicals while Boston stayed clean. “We kind of instigated a lot of stuff, and they retaliated, and that’s usually what happens.”

In a nice cover story for Sports Illustrated, Ian Thomsen talked with Doc Rivers about Perk’s avoidance of any physical response.

“First time in his life—he fouled Dwight, holds him and holds him, Dwight hits him with an elbow, hits him with another one, and Perk just stands there,” said Rivers. “At halftime I said to the team, ‘That is toughness. Toughness is somebody hitting you in the freaking face, and you’re looking at him and laughing and walking away. That’s a tough mother.’”

If you can’t remember as far back as the Orlando game, just think about last night. Brook Lopez received a technical foul for a little jostling with Perk (albeit a very weak technical, which ended in Lopez gazing around in all sorts of confusion), but Perk didn’t respond. Okay, so maybe it’s not the best example. Lopez didn’t exactly throw any lethal elbows. Still: When’s the last time, before this season, Kendrick Perkins openly walked away from contact?

It’s not like Boston has lost its edge. The Celtics still play with a ferociousness that occasionally (and, sometimes, not so occasionally) crosses the line to insanity. But there’s something slightly more controlled about what I’ve seen recently. The C’s seem to have a better hold of their own emotions.

Maybe I’m overreacting to a few weeks of somewhat behaved play. Maybe Perk will spend the post-All Star break Western Conference road trip elbowing people left and right, and piling up double technicals like there’s no tomorrow. Maybe Garnett will throw some ill-advised elbows of his own, or administer another cup check or two. Maybe the Celtics will revert back to the team that loves retaliating, rather than simply instigating.

Or maybe the C’s  new “we’ll talk a whole lot of crap, bump the hell out of you, and then laugh in your face when technical fouls are handed out” mentality is here to stay. On second thought, probably not.