The left side was obviously a problem when watching in real time but when rewatching the game, it’s clear that Simmons is really bad. He blocks no one about 30% of the time. When he does touch someone, he’s off balanced and gets pushed around. It was the worst oline performance I’ve ever seen. If Montgomery can slow guys down, he’ll be an improvement.
(Mod Edit: Deleted your other four (4) duplicates, @TSUN)