What's the Biggest Motor Learning Concept in Sports?

The two big motor learning concepts that people are starting to really start to put in the sports world are one is the constraints-led approach and one is differential learning. Can you share some examples from baseball, how you strive to make changes from what's been done from traditionally to more in line with what you've learned from motor learning research? Yeah, definitely and I'll throw out a few terms here that are starting to become more buzzwords in the sporting community.