This isn't really Cub-related, but I thought it'd be an interesting topic.
Bonds clearly is way out of shape. He's even called himself fat. He says he has no cartilage in his knees; he may not be able to play the field more than once or twice a week, at most.
Unless the bases are loaded, I'd walk him every time he comes to bat. If there's no one on base, and the next hitter (likely Moises Alou) singles, Bonds could be thrown out at second on a force on a clean hit -- that's how slow he's going to be.
The more I think about it, the more I think he won't play at all this year.