http://soxprospects.com/index.html
Look at how many players in the top 40 are below the level of AA. And of those that are, look at how their seasons turned out and where they are going to end up. I can list them for you actually...
Reddick- looks like slower Ellsbury clone- will end up in AAA
Kalish- did well enough to stick at AA, but will likely repeat there at AA
Anderson- sucked in AA and will repeat the level
Tazawa- did well in AA, sucked in the bigs, will likely start in AAA
Bowden- did well in AAA, sucked in the bigs, will likely start in AAA
Exposito- performed well after his promotion, will likely start in AA
Doubront- was serviceable in AA, will likely start in AAA
Richardson- was converted to relief, pitched well in AA and AAA and will likely end up in AAA
Wagner- sucked in AAA on promotion, will likely start there, but he isnt much of a prospect
Jimenez- played serviceably in AA, but was old for the league and was repeating it. Likely to start in AAA
Place- played average in AA, likely to repeat the level
Mills- not sure why he is a prospect, he throws pus and isnt very good, but he pitched average in AAA on promotion
Thats 12 guys on the top 40 list that are within a stone's throw of the big leagues. Of them, 5 actually look like potential impactful big league players (Kalish, Reddick, Tazawa, Bowden, Anderson). Of those 5, 3 are likely to see the bigs at some point in 2010, with none of them locking down a key spot. This is why I say that the sox MiLB depth is thin. None of these guys are standing out as lights out prospects like Buchholz, Lester, Pedroia, etc. Their best looking prospect sits in High A (Casey Kelly).