What is the author's opinion on the Broncos' offensive line and quarterback, and how do they relate to each other?
Um, no, the offense line is garbage. I played football for years too, and I think most OL I played behind were better than this (joking...sort of).  That said, I agree, Siemien is terrible.  A decent QB can make up for some of the obvious OL shortcomings the Broncos have.  Siemien, on the other hand, is awful in the ONE area you can't be awful in....decision making under pressure.  It is his worst attribute, and it is why he will never make it as a starting QB.