There's various vids of him being mic'd up on the final drive, but this vid shows him reading the defense and translating it to his crew.
I think the Jags are going to rough Jimmy up. The Niners O-Line is suspect as hell outside of Kilgore and Staley. They should spend a draft pick on their O-Line, but I really like Fitzpatrick and Bryce Love for the Niners in the draft.