John Fisher
Fisher is one of the most controversial owners in MLB today. The hotel chain owner’s fortune is worth billions of dollars but the Oakland A’s don’t see it. He notoriously doesn’t spend a lot of money on the franchise. Now there’s a risk that they will become the second Oakland franchise to move to Las Vegas.

One of the biggest mistakes that Fisher made was refusing to connect with the fanbase. He operates in the shadows and most of his top employees didn’t meet him until 2019. Some people like that he doesn’t make everything about him. But others wish that he had more of a hand in the franchise’s operations (via Sports Illustrated).