Yeah, and Zappe has thrown for 5 TDs in 3-1/2 games played. Mac has thrown for 7 TDs through 10-1/2 games played.
Unless - by some remarkable coincidence - Patricia and BB just got really lucky those weeks Zappe played and managed to spit out a good game-plan, but have sucked every game Mac has played in ... maybe we should be looking beyond only the coaches to explain the performance of the QB.
And none of that is to say everything is perfect around Mac, nor is it to say that Zappe is our savior ... but it is to say that the quarterback themself, the one making decisions and throwing the ball, should be accountable for their own performance at least some of the time.