Diekman is one of those guys like Kelvin Herrera (you're welcome) where the stuff just makes me think there is another gear for him that he hasn't hit yet. Kinda like Andrew Miller circa 2012. Diekman is also a very strong bet for holds, and he already has a 100 K season on his CV. I'll probably cut him anyway, but if I had a spare roster spot and I was looking for an upside reliever, he's a good bet. Sam Dyson's job isn't that secure, a bad first month could open the door for Diekman or Bush to seize the reins.