22. Philip Rivers
One of the asterisk players on this list, we’re counting Rivers’ second year as a starter. The former San Diego Chargers star took possession of the shirt in 2006. He took over from Drew Brees and played outstandingly well. However, he suffered a bit of a slump the following year.

Rivers’ numbers are very interesting because he threw way more interceptions and his pass completion rate went down. The former rose from nine in 2006 to 15 in 2007. However, the Chargers went deep into the playoffs so his weaker individual season wasn’t a problem. Meanwhile, he was a regular passing leader over the next few seasons.