Defend Trevor Siemian's performance as a quarterback and place blame on the poor performance of the offensive line and other offensive mistakes rather than solely on Siemian.
Siemian didn't muff punts, or drop passes, or commit stupid penalties.  But he did run for his life behind the worst offensive line in the NFL.  Granted, he made some stupid throws but there is a lot more wrong with the offense than Siemian.