Completely agree that this will most likely be the case tactically during the game. My question was more along the lines of how this is done contractually, something I know nothing about when it comes to the NFL.
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bigjimram21
Chances are the Ravens would already be changing their calls and alignments for that game. (but really how much can you change and have it effect how you play defense the rest of the year for one game).
Where he will help is giving McVay tendencies of the back end in coverage, and I'm sure during the game talking to JG and company on what he sees the Ravens defense doing .