I don't think it even matters if Jake is unfamiliar with the current product and talent. He is the most creative of the three, so I think he's the best choice.
Hire him, give him two months to watch video and familiarize himself with everybody on the roster, and just hand that dude the keys. Let him fire any writers he wants to fire.
Can't imagine Bret ever wanting a full-time job again or working with any kind of committee. He'd probably be too old school for today's audience, too many straight-up "hero vs. villain" feuds. But at least he'd cut out about 90% of corny-ass comedy segments, so that's a plus.