I see two possible scenarios at play here.
1 - Dorsey called great games against the Raiders, Commanders, and Dolphins. Now granted, he's had two off games. Is it that defensive coordinators have figured out what Dorsey has done against the Raiders, Commanders, and Dolphins, and schemed against those tendencies? And the coaches SURROUNDING Dorsey haven't given input to help Dorsey adjust? I mean, Dorsey has a lot of experience around him.
Or, 2 - Are those coaches indeed giving Dorsey input, and he's too stubborn-headed to adjust? McDermott has shown he can adjust the defense in-game. Something in the offensive coaching box isn't doing the same.