"both Morneau and Mauer were quickly moved through the system. So that leaves Span from you list as an example to compare to Sano?" Mauer spent his first full minor league season in Low A. At basically the same age, so will Sano. Next year, Sano could move up a level or two, like Mauer did. Or, he could move at the Revere pace and move up one step at a time. Either is fine. At the end of the day, it's not about getting them there quickly... it's about them being ready when they get there. They've moved Arcia pretty quickly. Hicks was moved slowly early, and clearly he needed that. There is no booklet that says exactly how long a player should take to advance. Why should Hicks come up for September? I get it, if he's going to play, like Benson and Parmelee and Tosoni did last year. But if Willingham, Span and Revere are all there and playing, then he might as well go play elsewhere. They'll add him to the 40 man roster either way. Also, there is a month left in the season. New Britain is very near a playoff spot, and Rochester is somehow finding themselves back into the playoff conversation. The Twins have shown a willingness to call guys up from AA if they're playing well, so why mess things up for those teams? No one's development is being stalled.