I'm not totally sure this injury implies he needs to retire soon. Brandon Roy, who I think is the best comparison, had knees in much worse shape and actually admitted he just didn't want to deal with the pain anymore while he couldn't play basketball at as high of a level as he once was playing. I think what it does suggest, though, is he needs to be playing significantly less-playing time. I also think what this season shows is he could be very good as an offensive leader off the bench. He could still be useful closing out 4th quarters but it is all about finding the right spot.
I do think the Bulls will try and stick with Rose, but not as a star player. I don't think he will be able to pull a Z in start, or at least play starter's minutes, in the NBA. I frankly don't believe he should've been this year anyways. But, I think what your statement implies is that his career as a starter, and especially MVP caliber player, are over and most basketball fans agree with that. The questions are where he will play and in what role. My bet is he will be a Bull for life but in a significantly reduced role.
