I agree. The A's announcers talked about how Cahills pitch percentages have changed from last year to this year. They questioned why he was throwing fewer sinkers that were more successful last year and more curveballs this year.
Cahill also threw lots of pitches up and in the middle of the plate. His location is horrible. I am surprised the A's only hit 2 home runs off of him. Yosemite would be the only park that would keep decent hitters from hitting a ball over the fence.