4. Nick Saban (Miami Dolphins)
Nick Saban is arguably the greatest football coach in college history, but his success did not translate to the NFL. However, it was not as bad as some people remember. After leading LSU to a national title in 2003, Saban left the Tigers after the 2004 season to coach the Miami Dolphins. He spent two seasons in Miami and went 15-17. Not great, but not too terrible. He left Miami after 2006 and took over Alabama. The rest is, well, history.