Model Risk Management - Goldman Sachs

I'm moving from a technical PhD into a banking internship as a GS strat. I've been offered a position in "Model Risk Management". I've read that risk is "middle office" - but most threads are talking about market risk positions. How does model risk compare to the often spoken about market/credit risk divisions? And more broadly speaking does anybody on WSO have any insights into working as a strat in model risk management? Would like to move to a quant hedge fund eventually .. not sure if this is the right transition role. Many thanks!