I just got Lorenzo Cain (9 5 9) about 300 games ago, and subbed him in for Michael Brantley (9 5 6). After 300 games Cain was batting 40 points lower and had an overall 96 points lower OPS. I have now switched back to Brantley. I figured the speed would help his OPS a little and their average should be around the same, but…