Manning has been struggling to fully let loose his fastball in extended spring training, as he is gearing down to guide the ball into the zone, Baseball America reports.
Not only has Manning not been pitching with a full-season affiliate, thus failing to improve his stock since the end of last season, but he is apparently struggling in extended spring training, so his stock has legitimately taken a hit. He still has impressive raw stuff, but it sounds like he will be a slow mover through the minor-league ranks.