I'm not sure that you do, his biggest concerns are his mechanics and potential injury history that may come with it. Revere is a 1-2 win player, which isn't nothing, but it certainly isn't on the level of a starter of Ross' caliber.
Guess the starters: 205.0 IP, 3.34 ERA/2.92 FIP/3.06 xFIP/5.0 WAR
196.0 IP 3.26 ERA/2.98 FIP/3.15 xFIP/4.4 WAR
212.1 IP, 3.65 ERA/3.47 FIP/3.40 xFIP/4.2 WAR
Two of them are considered aces/#1 pitchers across baseball.