These two videos come from my trip to Jupiter last week to take a couple of my guys to work with Kolby Tullier. If you struggle with sliding off the ball and not turning these could help you. I have included one of the exercises and one of the drills we used on the range after. I use both of these all the time with players of all skill levels.
Exercise to stabilize lower body and reduce slide:
Range Drill to Reduce Sliding and Improve Rotation: