The Legend of Don Cooper

This post refers to

Jonah Keri talking White Sox:

We’re still trying to quantify exactly how much a pitching coach can affect a team’s results. But after a while, you see enough Esteban Loaiza, Matt Thornton, and Philip Humber stories and wonder if Don Cooper might be the best pitching coach in the business.

I would add Gavin Floyd and Sergio Santos to that list for sure, and maybe Bobby Jenks as well. I always wondered what non-Chicagoans thought about Cooper. I have see first hand, he’s very good.