I don't think Cameron was really wrong with that one(unlike several of his other pieces this postseason), but I did feel like it maybe missed the alternate explanation, that even a tired Chapman was hitting 98-99 with every fastball and hitters have to respect it. That's still velocity that nearly no one else gets to with regularity, and a 10+ mph gap from his slider. Even though he threw slider after slider in that inning, he had thrown 90% fastballs as a Cub. Hitters have to gear up to catch up to 98-99, making it all the harder to square up a breaking pitch, even if they caught more of the plate than Chapman wanted.