Depends on what you call rotational. Mike's drills encourage not getting off the back side, lack of tilt among other things. Compare what you hear to elite hitters in slow motion video. Here's a primer.
http://imageevent.com/siggy/hitting/...lcp2i01.lion_s
I was a big Epstein booster at one time and his program WILL make most youth hitters better but with an unnecessary ceiling IME. I've settled on Steve Englishbey being the best I've found. If I find someone better, I'll let you know.