Oof, no.
Murray looked absolutely deflated during that playoff game as it got worse and worse. We've seen Russ, no matter how bleak things look, stay positive, keep the energy up on the sideline, and sometimes pull off the comeback (SF/GB playoff games) and sometimes fall just short after being down big (ATL/CAR playoff games). These two QBs appear to be made of very different stuff mentally.
He seemed pouty in their regular season finale loss to Seattle and continued that into the playoffs. The guy seems to have a dud of a personality; whereas Russ, for all his cliche and corniness, is a positive winner.