I don't think anyone doubts that Brown is trying, he clearly is. The problem is that he's trying to do to much and while that does give you a chance to make a big play, it's far more likely that it'll lead to giving up a big play. For example, great corners sometimes take a chance and jump a route they thik they've diagnosed and everything is gravy when it works but but the flip side to that is possibly giving up a TD. Players who take too many chances usually end up hurting their team. When Fitz throws picks he's just trying to "make a play" too, but he ends up doing more harm than good.My bet is that Brown has been straight up blowing assignments this season, was made aware of it, didn't change, and then got pulled. I have no hard evidence for this really, it's just what makes the most sense to me.