I've long had the idea to put Jason, Cass, Ryan Choi, Mercy Graves, and Jean Paul Valley on the same team.
It would have a Cowboy Bebop/Firefly/outlaw star feel with the group being a rag-tag group of mercenaries. Jay being the de facto leader and hothead, Cass as the stealth-y ninja type, Ryan as the brains, JP as the muscle (and having a nine-tailed fox thing going on with his Azrael personality) and Mercy as the getaway driver/gunslinger. I've got more ideas, but it's too much to list.....
But then Secret Six got relaunched as an ongoing and BftC happened so yeah that idea become superfluous and constrained but current characterization.