I understand your thesis, but I don't understand the underlying logic. If he's not ready to be a complete player how is accelerating his arrival in Baltimore going to change that?
Are you saying that you think we should intensify his training and the attention he receives from the instructional staff>?
I'm saying there's no concern about "ruining him" through rushing him to the show. The moment he reaches the point-- assuming he every does-- that he provides more value for the big league team at any
position (DH, 4th OFer, pinch runner, anything) than whoever is currently doing that job, he should be promoted. If he never reaches that point, that's fine. He's not a great prospect in the first place. But if he ever reaches the point that he is a better option for even a part-time role than one of our regulars, he should be promoted.
Most "real" prospects should never be evaluated relative to the major league team. If you think they've learned all they can learn in the minors, or that they can learn more in the majors in the minors, you should promote them. The decision shouldn't be based on whoever they're replacing on the 25 man roster. Their long-term value is more important than their immediate value. For Urrutia, there is no long-term value. He's already three years
older than Xavier Avery. There's no point waiting around for him to get polished.