2010: Jimmy Clausen, Carolina Panthers
The only thing that Jimmy Clausen was consistently good at, over the course of his quarterbacking career, was failing to live up to expectations. As the most sought after recruit in the history of college football recruiting, Clausen never took the University of Notre Dame to a BCS bowl game. Despite once being viewed as a potential #1 overall pick in the NFL Draft, Clausen fell to the 2nd round of a 2010 NFL Draft that was pretty marginal for quarterbacks.
And after being named the starter for the Carolina Panthers in his rookie year, Clausen finished the year with an unheard of 15.0 quarterback rating, which was dead last in the NFL among all quarterbacks. Clausen started 10 games that season, and somehow managed to throw only 3 touchdowns. Read that again, that is not a typo.