Bernier isn't going to be good. I don't understand not promoting Romero instead. As far as Polanco is concerned, he will definitely need more time defensively, at the least. He is destined to start 2015 at New Britain. That's quite good.
The September Twins INF thing is changed. Now Santana must get some time at SS, so the Twins also don't want to promote.
Romero's future in professional ball isn't with the Twins IMHO.He wasn't promoted when the regular 3rd baseman and one of his primary backups were disabled on the same day.He turns 28 this month, so he's not young, he hit 8 homers for Rochester in almost 500 PAs, so not much power, 0 stolen bases, not much speed and his rep as a defender is substandard.Besides all of this, one of the Twins' mega-prospects is a third baseman--the only position Romero has played with any regularity (40+ games at first in his over 800 minor league games).