why not put two ten thousand hour pilots in the cockpit?
At around 16,000 hrs I had a 9,000hr ex-Herk skipper once in
the RHS. He'd been on the 320 squirter for two years as a FO.
That was a total of 24,000 hours in the cockpit.
..CRM comes naturally in that situation without all those rules
meant to accommodate the kids - we were too experienced to
let the other guy do something dumb while at the same time
too old to bullsh!t each other.