I think there are different aspects that people are focusing upon that get in the way.
1. Roy used effectively a lot of statistics that show Perk to be better. The problem is that one would have to demonstrate how those numbers change once Perk is playing in OKC, and how Krstic plays for the Cs. Bottom line with these stats, we need to control for the context. That isn't being done nor can it at this point.
2. Roy has said he is concerned about the chemistry issue. I agree here 100%. But Krstic appears to be fitting in pretty well. We are all seeing improvement each game. And given the injury situation, it almost helps ALL the new guys to get their feet wet. This should help a ton in the playoffs.
3. A lot of posters here never followed the Thunder prior to this trade, so they are completely reliant on Krstic's use in OKC for evaluation. My experience with this is that we favor those we are familiar opposed to those we are not.
4. Perk was incredibly popular. No doubt about that. So obviously that is going to sway opinion as well. Not to mention, Perk knew his role and didn't go beyond that. Big Al said Perk struggled with that early in his career. He found his niche. As long as OKC doesn't ask him to go beyond that, he should work well for them. Krstic should find his place here on the Celtics and do what they ask him to do, which it appears according to Doc has been pretty easy.
5. Many people are forgetting that all things being equal, if nothing changed, who would be playing center right now for the Cs if the moves weren't made? How would that impact our record and ranking?
6. I don't always agree with Danny's moves, but this one appears to have netted us a big improvement. Green and Krstic fit well. And hopefully we'll get a nice draft pick out of this, or trade it for a good player. But it's hard to say that one player is being overrated when so much of what we do on this board is homerism. We all root for the Celtics. We need one or both of the O'Neals to come back reasonably healthy. But that was the case before the trade. That part hasn't changed.
I'm just stoked that players are coming to the Celtics and not the Heat. But the real threat is Chicago anyway. We're going to need energy to beat them in a series some time in late Spring. Hopefully the Cs will be reasonably healthy by then.