The hometown Arizona Cardinals have officially made a change at quarterback. Rookie Josh Rosen will start at home against the Seattle Seahawks this Sunday in what appears to be a “the future is now” move. Sam Bradford has been shut down after an abysmal 2 3/4 game performance. It is speculated that the offense will certainly be less stagnant with Rosen in the lineup, but I would like to go deeper. Will a change at quarterback actually help David Johnson in fantasy football?