It's an interesting proposition.There a lot of football fans in Geelong and western districts that are not Geelong supporters.
Western bulldogs would be an ideal co tenant.
On the very rare occasion other events are held at GMHBA those events draw excellent crowds.
It might not be about making money but losing less.
For example Dogs v GWS at Kardinia Park might lose money but might lose less money than the same fixture at Docklands . Depends on stadium costs.