Ego's are as much the cause of failure as success. The ego clash led to them dismissing Schottenheimer, and also their clinging to Norv. Unless they somehow end up in the AFC championship game or better, I don't see how he gets retained for next season.
(Living in San Diego, the fans are just besides themselves with the let down yet again. It's amazing they don't expect it after every year of let down. But then again, we kept having to believe Nolan or Sing might turn it around!! Painful.)