Posted by bjschumacher on 1/20/2015 10:17:00 PM (view original):
Management Console.
If the question was what screen to set it at- Manager's Office->Management Console for the team, Manager's Office->Player Settings->Edit Player Settings->Type:Position Players for individual
If the question is what % is good, the answer depends on how much of a stickler you are for full-health players. For example, I'm really anal about keeping players at 100% through at least up to roster expansion, then I tend to ride them thru the stretch run (they'll rest when they're dead). So I auto-rest at 99 for any position player that has a substitute available. Also, for pitchers I personally choose 85 for long relief and 90 for setups.
As for player performance, whenever I play teams that have entire rosters of guys in the 80s and 90s it just doesn't seem to the naked eye like there's any drop in performance for their position players (not that I can tell at least), but for pitchers it does seem to the naked eye like they do pitch a little worse when they're close to their auto-rest level. I might have remembered reading in the past that fatigue level for position players is related more to increased injury potential than drop in performance