Maybe -- just maybe -- he might have motivated them. Maybe -- just maybe -- he might have gotten them to spend more time in the weight room. Maybe -- just maybe -- he might have taught them enough technique so Roberson's lack of strength might have been overcome. A lot of DBs haven't been great tacklers. Seems like a great DC -- specially one who used to be a DB himself -- might have been able to help them get better in their time with him. Or maybe they're just bad kids. It's amazing how often that appears to be the case when players don't live up to fan expectations, isn't it?