Those are not excuses just observations,siemian is a different type quarterback he is more of a dink and dunk type quarterback,he was best option last year,lynch played in spread offense siemian played in a more NFL ready offense,he had the experience and that's why he won the starting job,I think it's premature to crucify lynch right now give him a few more years of development then if he still doesn't get than label him a bust.The problem is everybody saw what dak did last year and trying to expect lynch to duplicate what he did,stupid comparison,Prescott walked into perfect situation with the best offensive line and very good supporting cast,face it siemian is the quarterback of  the present lynch is the future,they are close in age so he shouldn't be rushed right now,and who is to say osweiler doesn't get the chance and takes full advantage of situation,and becomes the starter,regardless I will still pull for the Broncos no matter what I want them to win regardless who starts.