5. John Elway
A Broncos legend, Elway spent all 16 seasons of his playing career in Denver. Initially drafted by the Baltimore Colts, Elway famously said he would refuse to play for the downtrodden franchise, forcing a trade to Denver for a better future. However, his rookie season was definitely terrible. Check out some of these statistics.
Elway started 10 games in 1983, throwing seven touchdown passes to 14 interceptions and completing just 47.5% of his passes. The Broncos lost patience after three straight losses and benched him for the rest of the season. It all turned out well when Elway became a two-time Super Bowl winner and nine-time Pro Bowler.