Lets say XYZ Broadcasting Corp. likes Wrestling very much - there should be a chance that they buy out a Company who is in finical trouble. This could be tight to the Level of opporations like Local, Regional, National or International. So when WWE would be for sale only a International MG would consider taking over.
They could give you money when you do a good job to go for bigger draws. Tight to how much money they have. Remember WCW, lets say Brock Lesnar is a free Agent and you wanna sign him but do not have the money you could ask your boss at the MG if they could offer him a contract.
I think more interactions in general with the MG Board of Directors would make a WCW game very cool.
There could also be a line where you could choose which other media outlets they have and a Wrestling company owned by a MG could then get a few bonuses like more viewers at a show if they have Printmedia or more Online TV subcribers if they have various internet outlets and so on.