in plus plays. It's not a good strategy for his skill set. Zach's decision-making is poor and yet we're asking him to make difficult ones on a significant portion of called plays. So when you say that the other QB's were running simpler offense you're right, but that doesn't make them inferior. They played cleaner games than Zach did and it's not even that close.
Zach wins out because his legs get him out of trouble sometimes. What I see is a QB who lacked arm strength last season and who relied on his legs far to much, which caused him to suffer from Manzel-itis: the art of never living to play another down.