2. Norv Turner
Marty Schottenheimer did a solid job with the Chargers until they abruptly sacked him. Then Turner came in with a reputation as one of the best offensive coaches in the league. He had some exciting talent to pick like Philip Rivers, Michael Turner, and LaDainian Tomlinson. However, the latter pair departed and the former badly regressed.
Turner’s biggest issue was his failure to lead one of the most talented rosters in NFL history to the Super Bowl. Instead, they regularly crashed out in the playoffs in shock defeats to teams like the New York Jets. Towards the end of his reign, the Chargers went on losing streaks and several other key players left. In the end, San Diego fired him after a 7-9 losing season. What a waste of potential.