Stevenson back to Rochester. I don't understand keeping Yadiel over him, Stevenson is far more versatile and arguably a better hitter. Since his most recent call-up on July 3rd, Hernandez is .143 .250 .143 mostly in a pinch-hitting role.
I have no idea why Yadiel, Mercer, Parra, and Rivera are up here over guys like Stevenson, Noll, and Reetz. I don't think any of those guys have a shot at turning into frontline starters, but they have potential to be useful bench pieces. None of these old guys will be around past this year.
