Yeah, that would be cool, if when it worked, he'd try it again the next night. A good example would be the double header in Cleveland. PK goes 2-5 with a 3 run HR to win the game in the 1st game - So, JM pinch hits him in the 2nd game. Why? No way did Knerko ask to be kept out! Then he plays again on Sunday and hits well again. I'll bet he'll be benched on Thursday.
I understand you have to shake things up if it's not working, but it's not going to work instantly or continuously. Give it 3 or 4 games, then shake it up.