Does anyone have a player performance formula/spreadsheet that gages how a player performs per  game? i want to judge if a guy is under or over performing to their ratings. Thanks.

Build your own.  I don't mean that in an insulting way at all - the process of building the formula will make you a better coach more than the actual formula will.

With the new engine and the mix of new and old recruits, it's really hard to gauge what is working and what isn't based on ratings.  I was building one before the new engine came out and when the announcement was made it was coming out I just stopped because it was pointless.  I think it is still pointless to try to make one of these until a season or two passes with the new recruits only and we see what works.

cornfused, i have no problem building my own, i was just seeking what things successful coaches look at in determining if a player is better in a starting, or coming off the bench? is there a baseline that is used to gauage if a player had a good game other than the looking at the points and rebs.

Other than looking at stats, there really is no gauge, unless you go through and scrutinize the pbp, but that is not generally done.