There's no need to be so angry about this. It's perfectly defensible to prefer either of these guys as the team's best starter last season. They each produced xERA values within a few points of each other, with Gausman running a lower FIP due to lack of walks/homeruns and piling up strikeouts and higher ERA due to high BABIP. Manoah run a higher FIP due to fewer strikeouts but lower ERA as he generated more soft contact with a lower BABIP. I felt Manoah was more likely to see his numbers regress due the incoming shift ban as this would presumably lead to fewer batted balls turning into outs, whereas Gausman seemed to actually be hurt by the shift a good chunk of the time due to the unpredictable nature of the contact he gave up at times.