The value of Corbin would be if he could post a 6 ERA over 6 innings. Last season, he averaged just under 5 IP a start. The season before he was just over 5 and a half, which was acceptable. 2022 Corbin burns the bullpen and forces the team to adjust plans around him.
It felt like a year ago the Nationals had a bunch of young arms ready to be tested out. Feels like half of them blew their arms out, so now having Corbin start 30+ games has value. It isn't like there is even a D-list prospect waiting to take his place.