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The 2012 season clearly hasn't got the way the San Diego Chargers expected it would.

The Chargers sit at 4-8 and have lost any possibility of a postseason berth. Part of their dismal season is a 2-4 record at home.

Philip Rivers have struggled, and the team is ranked 26th in the league in rushing offense as well as 26th in total offense.

So what does that all mean?

Head coach Norv Turner may have been on the proverbial hot seat coming into the season, but it's safe to say that the seat is now boiling. It is hard to imagine Turner on the Chargers sideline next season.

Currently, Turner holds a 53-39 record as head coach of the Chargers, which includes a 3-3 record in the postseason. What may be most troubling, however, is that they have lost 15 of their last 23 games, dating back to October 2011.

So if the Chargers and Turner do part ways, who are some of the men who could replace him? Here's a look at five possibilities.