I made this post on another board, but it seems to apply here too, so my view on the bench is as follows:
"Quite frankly, though, most of the pieces are there. It's just incredibly misused by Doc.
The current lineup is House, Allen, Scal (or Ray/Pierce), Powe, Davis
Between them, the best point player is, honest to God, Paul Pierce. This leads to a lot of poor clock management and turnovers. There's also a lack of scoring, as House is the only bench player who has any perimeter shot worth a [dang]. This lets the defense collapse into the paint for the most part, preventing Allen from driving successfully (though that doesn't keep him from trying, resulting in absolutely horrible possessions where he basically runs headfirst into someone and throws up a wild shot or turning the ball over.
Davis is the first piece that needs to go, and I can't stress this enough. Davis gums up the works. He absolutely does. Leon Powe is arguably the best bench player of the lot. He's a great rebounder, plays well under the basket, gets to the line often, etc. Davis seems to remove that part of his game, somehow. In the last 2 games where Davis was out and Powe was in, he posted lines of 10-5(4)-1-2, and 15-6(3)-1-3-2 (Pts-Reb(off)-Ast-Blk-Stl). Davis hurts the offense by keeping Powe out of his more natural position under the basket (hurts the defense in the same way) and setting far too many moving picks. Davis is best replaced by the long, PJ Brown sort of guy we need. Dikembe Mutumbo would be a nice get. If not, though, it's best to just keep him sitting, lest he decrease Powe's effectiveness.
Scal, pretty obviously, is also not a great piece. I don't really need to explain that.
The ideal lineup, as they have now, is Pruitt, House, Allen, Scal, Powe.
The ideal lineup, as they should have it by playoff time, is Pruit, House, Allen, Powe, and a tall PJ Brown type. Again, hopefully Mutumbo.
Pruitt and House provide the perimeter shooting they absolutely need. Pruitt is also an actual point guard, who can get the offense started quicker, and get it going beyond a pass and a shot. He's not exactly ready, but give him some more minutes, and he'll play well enough. House also gets to go back to SG and play his natural position. With House and Pruitt outside, Allen should have some more freedom to drive. Powe would get to work his offense properly, and the tall man could add the needed defense without providing Davis' offensive black hole.
But this isn't gonna happen, 'cause Doc is generally resistant to change. . ."