"Peyton Manning has been retired for 20 months now. Why are they still running an offense built for him..."

They're not running the same offense. They had to run bubble screen every play with Manning because his arm was shot. Have you seen one bubble screen this year?

Maybe they should be running the same offense since Siemian and Osweiler have the same athletic ability as the 39 year old Manning. The only difference was Manning actually cared.

Siemian is just happy to have another cup of coffee in the NFL and Osweiler is indifferent and has nothing to prove after his $72MM heist.