It sounds like for the most part, everyone is arguing on the same side. The main difference seems to be some think AA to AAA is a 1 inch step, while others a 4 inch step (compared to a 4 foot step to the MLB). I thought TheCrew summed up AAA pitching very well. I was curious about the service time of our MLB squad at AAA, so I did some digging: Partial season at AAA: Braun, Gallardo, Hardy, Gamel, Parra, and Weeks - Gamel Single season at AAA: Fielder (blocked by O) Multiple at AAA(non injury): Hart, Hall, Villanueva, Stetter, Iribarren It seems that the Brewers still use AAA as a proving ground before you get to the MLB. If you succeed there, we move you up in a short manner (unless blocked). But there are some prospects that struggle at AAA. This season: Cody: Small sample, but was dominating AA and under Salome: Improving as the season goes along, but again dominated AA (hopefully coach is correct and this is only injury related) I really couldn't recall any high prospect that succeeded at AA and dropped to be a low/non-prospect at AAA. I'm sure they are there but not many. Conclusion: The step is small. The size of the step is semantics.