If you're going to start his MLB clock already, then get him in the lineup. If you're not going to play him, then don't pretty much guarantee he's going to be a super 2 in arbitration by calling him up for a handful of pinch hitting appearances and a start or two. If that's what they do then this one is likely on Rizzo more than the manager. The kid has shown some serious poise his first couple of plate appearances. Might as well throw him into the OF and run with it for a week.
I would love to see an OF of Stevenson, Bautista, and Robles for a game or two, especially after we've clinched and passed the Dodgers.