It is correct that most of our main talent are in Single A and lower although that could quickly change in 2009.
Our talent in the upper minors: Leonard Davis, Bill Rhinehart, Roger Bernadina, Jordan Zimmermann, Marco Estrada, Tyler Clippard, Adrian Alaniz, Justin Maxwell, and maybe a few more. None superstars but there are some definite Major Leaguers in that crop.
Most of our high upside guys are in A ball although a few could make it to AA this season (i.e. Detwiler).