It had nothing to do with Kubiak, who is a great Head-coach, in my opinion. It's more McCoy vs Dennison (useless).
Kubiak chose Trevor over Paxton and as we can see now, Broncos QB is non other than Trevor. Kubiak Benched running-on-fumes Peyton Manning in favor of OZ. Who's our QB backup now? non other than OZ. 3 years of the useless clueless John Fox got us to no where. Kubiak won the Broncos a SB in his first year, say what?