I don't think that RB is the right system to compare to since they are a consortium of clubs. Marsh has moved between three of them now. Whenever we have a really promising youth coach they usually get recruited as first team manager elsewhere. Like when Parker got swooped up by Fulham as an assistant to Ranieri.
It is easier for RB to retain promising coaching talent since they can give them a "promotion" to the next club in the chain.
