I'll believe only when I see it. I'd love it, though. I wonder if Sheed could get in shape (maybe Shaq's trainer will start to work with Sheed too), but he defended in the post as good as Perk if not better. The other concern would be his back, it was killing him in the playoffs, and unless something has been done to heal it, the pain would still be there.
If he's healthy, he's the best option to play 10-15 minutes come playoff time.