It'd be nice, but that's squarely on Morse. He swung at the first pitch that wasn't a good pitch to try and hit. All season long Morse has been a free swinger. I seriously doubt coaching is going to change that.
every time I've seen Morse in a walk-off situation he tries to hit a HR on the first two pitches he sees. I guess that's better than Werth who usually watches the first strike go sailing by before fouling off the 2nd pitch.