Powe has not had enough minutes to really see how he would do. From John Hollinger's column on ESPN yesterday about the biggest things in the playoffs so far. And this was before Powe got zero minutes in Game 6.
http://sports.espn.go.com/nba/playoffs2008/columns/story?columnist=hollinger_john&page=Awards_080516"Put Me In Coach Award: Leon Powe, Celtics
Besides Kevin Garnett, the Celtics have four other big men. Of the four, Powe was easily the most effective in the regular season, but he's been an invisible man in the playoffs. Though the other three are struggling, Powe is averaging only 15.8 minutes per game in the postseason. In the past two games, he's sat in the second half while Doc Rivers played Glen Davis and P.J. Brown together.
This is a bizarre move. Powe, who gets little fanfare nationally, was one of the league's most effective power forwards in the regular season on a per-minute basis. His per-40 minute averages of 22.0 points and 11.2 boards jump off the page, as does his 57.2 percent shooting. In fact, Powe's 20.97 PER was seventh in the league among power forwards, outranking All-Stars Antawn Jamison, David West and Shawn Marion.
Given that Powe is both abundantly more effective statistically and has a massively better plus-minus in the postseason than Davis or Brown, it's been an odd choice to say the least. TNT's Mike Fratello alluded to five defensive mistakes Powe made in Game 2 of the Atlanta game during a telecast, presumably because Doc Rivers told him this. But one could also retort by pointing out all of the offensive mistakes that could be alleviated by having another frontcourt player in the game who actually scores once in a while. "
I don't buy the argument that if Powe got more consistent minutes or more defined role that he would play better (and I definitely don't buy that he could cover LBJ). In this series, when Powe has been in there, he has been ineffective due to his lack of length. Unless more minutes made Powe longer, it isn't going to help with these match-ups. The other side of it is that he is not quick enough to gain an advantage as some smaller players would be able to do against Cle's bigs. I would rather see Posey at PF as he could sit outside and create a match up problem for them. Powe creates no problem for Cleveland.