Ya know, I've been thinking about this for a while...
Bob Costas should be the next commissioner of baseball.
He doesn't have any vested financial interests in any particular team, nor do any of his family members. He's got great ideas for how to reform the "business" to make it more about "the game". I read Fair Ball a couple years ago, and it still holds true.
I don't know what it would take to make him be considered for the gig, or even if he'd want it, but as a fan of the game, I'd love to see him in the role.