I think at the crux of the whole of the debate is everyone's feelings about the trade. Many who like the trade want to jump to overrate Krstic and many who miss Perk want to react against this sentiment.
While I initially questioned the trade, I have come to like it. However, I'll readily admit that Krstic is being overrated. But, let's also keep in mind, what player who has been teamed with our quartet of All Stars hasn't looked significantly better than he probably is?
Shaq was left for dead by some last year. People thought he was a team killer who couldn't play defense. However, insert him into a lineup with the Big Four, and he's rejuvenated, throwing down alley-oops and being a significant part of a team with the best defense in the NBA.
And that's why while I'll readily admit that Krstic is being offensively overrated (and his shortcomings on defense are being underrated), I also have to ask whether the same people jumping on those overrating Krstic are also the same people who potentially overrated Kendrick Perkins.
Now let me say that without question that Perkins is a more valuable player than Krstic. However, I'd also contend that Perkins isn't as irreplaceable as some would suggest either. For instance, if Perkins was so integral to our success, why has he repeatedly been off the floor in close games? Additionally, if he was such a fundamental part of our defensive cohesion, why did our defense not suffer with the likes of Shaquille O'Neal, Semih Erden, and Big Baby patrolling the paint?
Now that's not to underscore everything Perkins has done. Perkins was arguably my favorite player on the Celtics prior to the trade and I still think he's one of the best post defenders in the NBA.
However, I think if we're going to criticize people for overrating Krstic because he looks good playing with a quartet of All Stars, we also have to ask ourselves if we overrated Perkins for the same reason.