Tampa Bay Buccaneers: Josh Johnson (2009)
The Tampa Bay Buccaneers decided to use Byron Leftwich and rookie Josh Johnson as their “bridge” quarterbacks, before turning the starting job over to then-rookie Josh Freeman.
So when Leftwich got hurt in the third game of the season, Johnson got pressed into action. In five games (including four starts), Johnson completed just over 50% of his passes, throwing four touchdowns and eight interceptions, failing to hit 250 yards passing in any of those games.
By the end of October, Tampa Bay went ahead and had Freeman replace Johnson as the team’s starter.