MrDreamCoin has created a roster set that changes MLB Show's gameplay. If you're in it more for the fun than the realism, then check out this offense-heavy, wacky roster set. Every player has maxed out potential, is 18 years old, and every batter is the same created player. The same created player is also used for every pitcher. The pitchers have the craziest pitches: knuckleballs, forkballs, screwballs, cutters, 2-seamers.
Certain attributes are maxed out, and others are minimized. There's a whole Reddit post about it here:
https://www.reddit.com/r/MLBTheShow/..._rosters_2017/
MrDreamCoin might or might not release the roster set publicly, though you can acquire it from him personally. Contact him on Reddit. He said his OS account won't allow him to post, so he doesn't use it.
He's played 4 games so far, and it's been crazy. Fielders unpredictably drop the ball or throw it away. The catcher drops the ball on almost every pitch, making every strikeout a possible single, and the maxed out running speeds make for a constantly intense game. Here's his first video:
https://www.youtube.com/watch?v=lqmK1BV-mkU
He'll be reading this thread, so let him know if you have any questions or ideas. These weird rosters could be useful for game testers, developers or other people who want to experiment or just have some unrealistic fun.