A nice idea in principle but the day a QF Captain turns up to support/help a jetstar pilot will be the day hell freezes over I think. (but i hope i'm wrong)
Do you actually know any Qantas Captains or do you just run with the stereotype that you've been fed from PPRUNE or others (who in most cases also got the stereotype from PPRUNE or others)?
In any event, You're wrong. This QF captain will be there.