I observe this situation pretty much every time I am on client's premises:
There are clustered gateways or VSX appliances in separate racks.
There is typically a single management appliance per-site with single Mgmt interface connected to the network, (not counting LOM and Console).
Is there any downside to creating a bonded interface, connecting it to two clustered switches located in separate racks and using it for administration?
This approach should help with the situation when connectivity to one of the switches is interrupted or if one of the switches is offline.