The Rays haven't made any very notable moves since Silverman took over, and the Athletics have made very questionable or downright poor moves since Zaidi left. In the meantime, the Dodgers have made an incredible transformation for the better. Until those teams show us that they're just as good without those executives as they were with them, there's no way we can claim they're helmed by some of the best executives in the game.
I don't even know why this conversation is happening, ranking executives is just about the dumbest thing you can do as a baseball fan. There's absolutely no basis in it, beyond a delusion that you know more than you do.