He should keep a log of what he does that is above and beyond and use this in reviews - it is a 2 way process and he needs to advocate for himself too.
he should proactively set up a time out of review cycle and tell them he expects a good review and ask what he needs to do to obtain that. then he has aplan to work twds and some commitment from them. if he wants other roles has he id'd them to his boss and does he have some development pts that will assist him in getting there.

These are some practical ideas to hel[
the other part of me says BOO to them and i am sorry you have had sucha tough time x