9. Case Keenum (2018)
Case Keenum signed with the Broncos in 2018 after a playoff year with the Minnesota Vikings the year before. A lot of eyes were on him as he looked to make magic happen for the Mile High team.
Keenum threw 18 touchdowns to 15 interceptions in 16 games with the Broncos, on the way to leading them to a 6-10 record.
End result for Keenum
It was an unfortunate lone year with the Broncos, but looking on the bright side, the poor year helped the Broncos get several really good players in the 2018 NFL Draft.
The Broncos and their fans wanted to quickly get rid of the memories Case Keenum made with the team.
In the end, they had to search for their next quarterback—one who would hopefully become the future face of the franchise.