I don't get why so many fans and local media pundits are so down on Jermaine O'Neal. So he's 31 and has a lot of miles on his body, so what? He's a LOT better upgrade over Rasheed Wallace or Shaq, in my opinion.
Look up his stats. He's been extremely consistent. As the main guy in Indiana, he was putting up Gasol numbers. The past 4 years as more of a role player, he played 28-30 minutes a game, and put up 13 points and 8 rebounds, almost the exact numbers every year. He plays mostly down low unlike Rasheed, and has high FG percentage figures. Given the other guys playing for the same amount of money, Jermaine O'Neal is arguably a good deal, a discount/bargain at his salary. Darko is almost making as much as he is.
He isn't slow as molasses as Shaq either, who would have been a terrible fit for this Celtics team which likes to run.