This is a question that I ask our students in our Area Code clinics and in our International Goodwill Series.
"What is the role of the hitter"?
answer: "see the ball"!
While watching the recent playoffs I noticed the # of hitters "pulling their head" during their swing. Has the desire for bat "exit" velocity created this weakness in hitters.
"watch the ball hit the bat"
"look for the red seams on the ball"