it's just natural that some won't play as well as others. Even guys we've had in the past who are known commodities have good seasons and bad seasons. It's awesome to think we have 15 starters on our team, but in reality, they are all guys with strengths and weaknesses and some are better than others.
Between that fact, injuries, regular old illnesses, matchups with our opponents, etc. it will all work itself out, just like KY said.