I don't think Rocco is extreme to that end. I hear quotes all the time about how the coaches are working with players on hitting, pitching, etc. They're working while they're at the ballpark. I wonder if they're always working on the right things. The prep work ahead of games is an area where I think Rocco does fine although the players may be spread too thin preparing to play multiple positions. There is only so much time in the day. You can't prep to play every position on the field.
I really hope they don't fire Rocco and promote Toby Gardenhire. The rookies have not been prepared to succeed in the field. That preparation should be happening in the minor leagues so they're ready for game situations when they get to the majors.