It was expected he was in decline before we knew he took 2020 off. His decline was already well underway. We don't pay half is salary, if he was worth what he was before 2020. His 2018 season was worse than 2017.
ERA+
122 TBR
136 DET
118 BOS (123 in 2018> 114 in 2019)
The real decline was in IP:
He led the league in 2016 for BOS with 230, then...
75 in '17
176 in '18
107 in '19
Who looks at these numbers and say, "I'm not sure if he is declining or not?"