During the season I posted comments and tables several times pointing out my concerns that the Diamondbacks pitching prospects might be getting overhyped and we might be putting too high expectations on them. However I started focusing on xFIP because it seemed like our pitchers were allowing more homers than would be expected, but I wasn’t sure why. The one big problem I had was that Fangraphs does not give us any park adjusted metrics for minor league pitchers, i.e. ERA-, FIP-, & xFIP-minus . They have wRC+ for hitters but no adjustments for pitchers.
When looking at these tables their performances seemed ok in many cases, but not eye popping.