I have never been much a of a sideline figure buyer. I have very few cheerleaders and such in my Blood Bowl collection but I recently picked up 2 refs in a trade. Refs used to have rules for them moving around the pitch but now have no need for any figures except to represent the get the ref rule as a reminder that the ref is gone.
So I now have a Dwarf and Human Ref.
The human ref is clearly more interesting since he is getting ready to discipline a wayward player.