I'm also not the biggest Vermes fan, but it's hard to disagree with the tactics of a guy who has such a good team right now. I still think he may be getting a little lucky with how things are working due to the high level of talent on the team, but time will tell.
I don't agree that he should have subbed anyone else. I mean, Peterson came on for Zusi. Not sure anyone else should have subbed out.