Siemian was horrible for a third straight game. We've seen the ceiling, his future is holding a clipboard as a quality backup. If the game plan does not go to script with the running game and Siemian just managing the offense he's lost. 

Made some good throws as always, but continues to flat out miss wide open receivers repeatedly or make throws that don't even give guys a chance to make plays. 

Lastly, I don't think he has any clue how to step forward in the pocket, every single game there are plays where he could easily step forward and instead he tries to run out backwards. This is as basic a QB skill as there is and he can't grasp it at all.

We've seen enough of Siemian to know exactly what is there.