I think we need to look at some of the rosters of successful coaches. Quickly, Siriani inherited a Super Bowl roster with a quarterback in place. Campbell inherited a talented roster as well and a solid quarterback in Stafford. Stevanski seems to be the overachiever without a QB, but they have talent from being a losing team for so long. Stanley is probably an obviously bad coach, but several guys have tried and failed to get the Chargers turned around. The numbers clearly show most coaches fail, but you can't discount the team's talent in the probability of success. You still need a gifted coach, but it's an uphill battle without talent and a QB. We must remember we hit it out of the park with Drew, Reggie, PT, and others. Allen was just a bad coach.