Play action only works on the goal line if the defense is expecting a run, which means not 2nd down if they stuffed the run on 1st. Now if you passed on 1st play action on 2nd would probably work. Of course all that goes away if the team is the Dolphins anywhere between 1984 and 2003, they had no running game and nobody expected the run ever, which is why the league never bought Dan Marino any jewelry.
Hillary fell down!
;-)
Just watched the highlights of Marino's only Super Bowl the other day. 49ers went with six defensive backs and the Dolphins still couldn't run the ball.