I think my problem with Rosario isn't Rosario himself or what the Twins are doing with him from a developmental stand-point. My problem is that the Twins did not acquire a major leauge caliber center fielder for 2015, meaning a guy capable of playing replacement level baseball as the regular center fielder over the course of the season (or a platoon). If you leave a gaping hole in the roster as large as they did, these things are going to happen. Rosario doesn't belong in the majors at this point and that's on the Twins, imo.