I think he does get invited to ST'ing. He may be called up mid season. My point was about him not being on the opening day 26 man roster. He needs some more refinement and needs to play everyday. I'm not sure about his mental make-up, but I trust our management to know when he's physically and mentally ready for the bigs. We don't want to have him riding the bench in Boston, so he's in a tough spot. He may soon be ready as a 4th OF'er in the Bigs, but he needs to play to improve.
I'm not convinced his bat is ML ready, yet. ST'ing sample sizes don't tell much, either, so even if he looks great in ST'ing I may still not be suggesting he start in CF opening day. Yes his speed may adequately compensate for any defensive shortcomings in CF, but I don't see any reason to force the issue.
Even if Bloom think Duran is ML ready, we're still going to add/sign a CF'er.