He's going to need at least a half season to adjust to MLB pitching. We've seen it with all of our position prospects. It took Moncada a year and a half, and Eloy a half season, so I'm expecting somewhere in between those two.
If I expected Robert to come up and rake it would be one thing. I don't want him to be a black hole offensively for at least half of 2020. That's the argument for calling him up on 8/1.