Kendrick Perkins should be fine this year, and even more improved. He's only 23, but he and KG are one of the top C-PF combos in the league.
Patrick O'Bryant is the ideal back up center that we've lacked. Firstly, he has length and is a great shot blocker. We have never had a shot blocker like this (except for maybe Ratliff or Blount for some time). Granted, KG and Perk are top shot blockers, but O'Bryant is a true shot-blocker, as true as they come. And he's a good rebounder, good passing ability, and can score.
Leon Powe and Glen Davis are superb back up bigs. I am not sure they have improved considerably from last season, or even if they have too much room to improve here on in. But any coach would take last year's Powe and Davis on their bench any day.
And who knows, if we get PJ Brown back in the second half:
KG, Perkins, O'Bryant, Brown, Powe, Davis
