18. Drew Bledsoe
Between losing his lone Super Bowl appearance, playing for a couple of underperforming teams, and losing his job to two guys on this list, Drew Bledsoe never quite gets the credit he deserves. Seen as a prototype quarterback coming out of the 1993 NFL Draft, it was Bledsoe who was the cornerstone of the resurrection of the otherwise moribund New England Patriots franchise.
Making the Pro Bowl three times in his first five seasons, Bledsoe threw for over 29,257 yards between 1993 and 2000, before that fateful injury he sustained in 2000 forever changed the trajectory of his career and the franchise he played for. But Bledsoe still added four more productive seasons after leaving New England, finishing his career with over 44,000 passing yards.
17. Carson Palmer
Shaking the label of being an uber-talented but underperforming quarterback while at the University of Southern California en route to winning the Heisman Trophy, Carson Palmer led the Cincinnati Bengals to their first division championship in 15 years, helped the Oakland Raiders finish with only their second non-losing season in a 13-year span, and led the Arizona Cardinals to their best regular season record in franchise history.
Palmer made the Pro Bowl three times over the course of his 14-year NFL career, and currently ranks 13th all time in total touchdown passes thrown (294) and 13th in passing yards (46,247).