a late 1st, a 2nd or even a 3rd round draft pick invested wisely every few years can make your pen cheap and have high-end guys. maybe 1 expensive contract at atime can save a tone of money for players that are used way more often (SP/Fielders). i have big problems when i neglect to have a pipeline of RP prospects coming up.
what i said looks complicated above but it isn't. minor adjustements relative to context. it's like clockwork, really
no effort or mental gymnastics invovled once the basic logic is worked out one time. fater that it is plug-n-play.
if you play the games out, it simply won't matter... just make sure to not paint yourself into a corner with fatigue. knowing how the ai will choose things will help make choices, otherwise.
100ip isn't neccessarily bad... it's only bad if he's unavailable for the more important situations that arise in a season relative to his role. if those 100ip are mostly high leverage situations in close games, it's all good. my MR/LR guys can do 100ip on occassion - quite a few 2ip outings, but still enter 60-70 games.
check game logs to see, if worried about how they are being used. can adjust based on what you see to alter the use.