If you’re truly responsible for $5 million of booked travel annually, I’d read more about an airline’s possible benefits and deal with the Sales offices.

AA Sales personnel can even issue invitations to Concierge Key status for high volume arrangers of travel, regardless of how much or little you fly yourself. That grants Executive Platinum status and benefits and priorities higher than Ex Plat, Admirals Club Membership with Flagship Lounge privileges for flying, even apron transfers by luxury automobile on some connections, etc.