That is not all though, I promise. There is a reason that Hader is really good and it is entirely because of how the Milwaukee Brewers are handling their top arm. Instead of letting him grow in the minors, they saw how helpful he could be as a bullpen piece. Now, he is a reliable arm that I personally love watching go to work.
His fluid delivery and different arm angle combine to make him hard to hit. The electric fastball and sweeping breaker are what make him really good at throwing baseballs. As his career continues, the hope is to get him into the rotation.