The most similar pitchers I can think of to Hader are Chris Sale & Andrew Miller, in terms of body type, delivery, and arm whip. Sale being a starter is, to me, clearly on another level. If I had to bet the mortgage on whether Hader would have a similar career to Miller or Rivera, I’d pick Miller every time. Miller was crazy dominant for a few years, and was utilized (especially in the playoffs) similar to how the Brewers use Hader. In a lot of ways Miller was the Hader prototype. That kind of thinking is why I’m fully on board with trading Hader now, or soon, before his value diminishes.