Is there an impact on player ratings for freshmen who play more? If I promise 3 recruits 10 min and play one of them say 15 or 20 will that have a positive impact on him? Also, would starting help increase ratings?

I have no idea of the mathmatical formula, but yes with greater playing time comes better improvement. Starts also give you a slight bump, but it is the minutes Now if you have given a start promise and fail to give him at least 80 percent of starts, it is a larger loss associated with that.

Question I have, do minutes and starts in "Post Season Play" give any more boost to ratings, and do post season minutes and starts count towards promises?

"Question I have, do minutes and starts in "Post Season Play" give any more boost to ratings, and do post season minutes and starts count towards promises?'

CT yes, on the ratings increase and it MAY help if you are under on the promises
NT no

Every team, sim coached or human coached, accrues ratings points in the regular sked. Think also the CT, but nothing in post season. And not sure about exhibitions. Players can accrue a ratings point or three in the two exhibition games, but have noted some players gaining that points if their team merely practices during those two days.