in a story about this, it was claimed that this is tied in part to the new revenue-sharing money. Supposedly, Volleyball is one of the sports at MN that will receive part of the $20.5-million revenue-sharing pool. the "GM" for Volleyball will help determine how that money is distributed.
in a related matter, it was reported last fall that the Athletic Department posted an opening for this new position:
“House settlement negotiator, quantitative analysis and contract manager.”
this person will essentially function in a GM role - like a salary-cap manager - for NIL and revenue-sharing distribution.
it makes sense from this perspective - somebody is going to have to make those decisions on how to allocate the money. it's proably better if the Head Coach does not have to handle that directly. let the coach do the coaching, and let someone else deal with the money issues.