SWA quest for international service is being done from scratch. Even tho FL is on the SOC and already flies international SWA has to be vetted by the FAA and various channels before the OVER WATER flying begins. Bringing on such a person who has ties to Washington will make it easier for SWA to move their international flying thru the various government hurdles. Typically when someone like Babbit comes on he has know associates who have government ties so after him there will probably be a series of individuals who follow him.
There's probably some truth to that, his connections within the FAA are probably the main reason he was brought in, labor relations is probably secondary.