There has been a study, sorry I don't have a link for it, and it showed that the Twins were pretty much the slowest when it came to minor leaguers. The problem with the study is that it weighed each player the same so Trevor Plouffe spent 8 seasons in the minors it skewed the Twins list older. Other orgs might have given up on a guy like Plouffe or Watkins etc. The Twins have promoted people fast - Mauer, Arcia, Garza, Gibson (before his injury). And they've had guys wait until they were 25 or older to settle in - Koskie, Plouffe, Blackburn. I don't think it's as big a problem as others apparently do. We haven't had many top prospects but most of them - Mauer, Liriano, Garza, Kubel were on fast tracks.