Top prospects whose stock is falling

Trevor Bauer is not showing the velocity that made him the No. 3 overall draft pick. David Banks/Getty Images

I've been asked recently about a number of prospects having disappointing years, especially players who were on my preseason top 100 list but missed my midseason top 50 rankings due to poor performance coupled with negative scouting reports. I've talked to a number of pro scouts over the past few days about these players to get some updated takes on their futures and whether any of these players' ships have sailed already.

This omits players who will fall from their 2013 rankings due to injury, including Dylan Bundy (Tommy John surgery), Taylor Guerrieri (same), Casey Kelly (it's like an epidemic), Rymer Liriano (we should just quarantine the Padres), Tyler Austin (wrist), Adam Morgan (shoulder) and Hak-Ju Lee (ankle). I'm also giving a pass to Courtney Hawkins, who was promoted too aggressively, starting the year in high Class A at age 19 when he probably belonged in extended spring training, yet who still has a very high ceiling if he can recover from a year when he'll be lucky to strike out in only 40 percent of his plate appearances.

Trevor Bauer, RHP | Cleveland Indians

While Didi Gregorius hasn't exactly lit up the National League, so far he's provided a better return to Arizona than Bauer has to Cleveland, which is more a function of how bad Bauer's been since the trade.