Let’s get this out of the way right up front: the Johan Oviedo trade didn’t just shuffle the Pittsburgh Pirates’ depth chart. It reshuffled their entire calculus on who they can and cannot afford to move next.
Despite every national rumor mill tossing Mitch Keller’s name around like he’s the last rotation arm in Pittsburgh, the truth is this: If the Pirates trade any starter next … it’s far more likely to be someone like Thomas Harrington than Keller.
Keller certainly isn't untouchable, but Pittsburgh's latest trade with the Boston Red Sox may have made him less movable.