Boobie gave up too easily. Sure his injury is devastatingly, and he’s not going to run with the same reckless abandon because as a RB he’s worried about his knee. But what’s wrong with shifting to Wide Receiver? WRs don’t get knocked around like RBs; he’s not going against Mel Blount. He still has his speed, and if he can’t play WR, shift to CB. That would attract the coaches again. Oh, this RB got injured, he’s worried about his knee, so as a response he became a wide-out and shutdown corner.