If Sale wasn't hurt, I'd say he was, but it's close.
Some might say JD is the "leader," but I wouldn't say "franchise" for him.
Devers is just coming into his own, and I could see him becoming the franchise player as soon as this year.
I have no issue calling Bogey the franchise player, but I don't think he is clearly "the man," and he wasn't that guy, when we had Betts.
If this was football, and I had to slap a franchise tag on a player, it would be Devers, but that's not really a good way to look at it.