The difference between JBJ and XB is that XB underperformed expectations but was not atrocious. His fielding needed more work than anything, and he has done the work and the improvement is noticeable. His offense was disappointing, but not bad for a SS, nevermind a 21 year old SS. Bradley, on the other hand, was atrocious offensively. I read an article a while back (some would call it a study) about players who had a full season as bad as JBJ's. There are very very few instances where those players went on to become proficient hitters. The odds are against Bradley. Also, Bradley is 3 years older than XB, so he is on a shorter leash.