No question that in retrospect it was trading Perk.
But that's in retrospect.
At the time, it made a lot of sense to me (given his past injury, there was a big question about whether Perk would be ready to play again any time soon).
Of course, it ended up not mattering, because Miami gelled pretty well by the end of the season. In other words, with or without Perk, the Cs wouldn't have beaten Miami in the post-season.
Of course, we'll have to revisit all of this if, a year from now, Dwight Howard is a Boston Celtic (which wouldn't be the case if Danny hadn't made the trade). I don't think it will happen, which is why I vote for the Perk trade as the worst, but the caveat is big enough (no pun intended) to mention.