Zimmer is a solid coach, but not special, just like his team is solid but nothing special. He's put together a decent defense to go with an offense that does nothing but rely on Peterson while hoping to hit a few play action passes per game. They beat a Green Bay team that's nothing compared to what they were last year thanks to a questionable fumble return for a TD that was a 50/50 call and was only allowed because the league encourages referees to let 50/50 turnover plays continue just so they can be reviewed without a team having to use one of their challenges.
A healthy 2015 Cowboy team beats the 2015 Vikings by 10-14 points on a neutral field despite our shit coach, so basically, who cares about Mike Zimmer?