He doesn't strike me as that dumb. Quite the opposite actually.
Finley clearly lived in a space in his head where everyone's concerns and his contract numbers mattered to him. I don't get that sense from Raji.
Now it didn't work out for him, so his gauge of the market and his performance plus role conspired to hurt him badly. But outside of second half foray's into being a consistently penetrating tackle regardless of the play design (often when the D was getting gashed), he seemed eminently coachable. Matthews has made more news about a position switch.