I'm NOT arguing the losses are the D's fault or that they are bad. I've stated they are good, many times. I'm just saying that yes, the offense is bad, but it's NOT just the QB, it's NOT just 1 player or 1 unit, because while the O is lousy, STs make their mistakes, constantly putting the O in terrible starting position. The D gives up scores they shouldn't, letting teams stay close or get close in the 4th or starting with a 10-0 deficit for the O to come back from. It does affect how the plays are called, either aggressive or conservative. You can't have a young QB throwing 35, 40 and 50 times like what happened in their 3 losses, especially when he's sacked 3, 4 and 5 times in those games plus get hit a ton. ALL of it makes a difference, ALL of it causes losses, penalties/fumbles/drops. If you believe that replacing just 1 player will change the entire team, I  disagree. LOTS of changes need to be made, LOTS of problems need correcting and that goes for ALL the players and coaches.