The Jermaine I saw this season, even before his knee acted up, was hardly this great defensive presence/rebounding machine. He will be an upgrade over Krstic (whose stock continues to crash) but let's not have unrealistic expectations. Baby will probably get more minutes at the 5 than Jermaine O'Neal in the play-offs.
I really worry with our ability to match up against either the Bulls or the Lakers. Even with both O'Neals back.