It is only my personal opinion - that making small differences between team's attitude creates zero options in the tactic creativity. (Hattrick rule)
I don't think that is healthy to create an opportunity to decide on pure statistical facts, while statistics are in Buzzerbeater very, very questionable point.
In short - If you will implement such a thing, you will put psychologically more influence to such a thing than it has to be, because you in fact doesn't know all influences which creates statistics, so you can and you will be failed by yourself.