Now that we're talking about AA and below, I'll show the "potential" ratings, since that's what I'm most interested in.
Aside from our major league and AAA starters, not many top prospects here. Rookie-ball pitcher
Steven Matz has strikeout potential, and AA (Binghamton) starters Dillon Gee and Bobby Livingston may become control artists. Other than that, it's mostly live arms that will have to get better. Possibilities to watch include Robert Carson and Kyle Allen at high-A St. Lucie, Brad Holt at low-A Savannah (go Sand Gnats!), Jeurys Familia at short-A Brooklyn, and Uguey Urbina's teenaged kid, Juan, in the GCL.
Little of interest in the relief corps. Ex-Diamondback farmhand
Connor Robertson (high-A) is our last best hope for something good to come of our having to endure Scott Schoeneweis's tenure as a Met (we got Connor when we dumped him). He throws lots of strikes; unfortunately many of those get taken over the wall.
OTOH, Lopez (high-A) and Hebert (rookie) are good at avoiding HRs, just not at throwing strikes. Carlos Muniz (AA) is coming back from an injury, and trying to earn a second chance up top. (5.40 ERA, but only 1.33 WHIP in 18 games in '08.)
Aside from K-Rod and Igarashi, not much here.
Brant Rustich (high-A) shows potential and Eddie "Waste of a 1st-Round Pick" Kunz will try not to embarrass himself unduly at AA. Other than that, more suspects than prospects.