Barring injury, I don't see any reason to recall any of the three. The Twins have Kepler, Rosario, Sanó and Cruz at the corner outfield spot, first base and DH. Only Sanó has truly struggled and he is under contract for multiple years. The player that would be replaced by the promotion of one of the prospects is Cave, but none of these prospects can play center field and to expect any of the young players to thrive with the number of at-bats that Cave is getting would be silly IMHO. I do think that youth will be served next year by the exit of either Rosario or Cruz, despite their success so far this year. Kirilloff would be the most likely to be the beneficiary since he has played quite of bit of first base plus left field. Having him share time with Sanó at first and DH, with the option of using him in left field provides the versatility that Rocco emphasizes.