If Horwitz had PH for Espinal, Horwitz would have slotted in at LF, Whit shifts to 2B, Biggio shifts to 3B. The Horwitz for Whit PH scenario was simple because Whit was already at LF. I realize Horwitz should normally only play 1B/DH, but he has played a fair amount of LF in the minors and we're talking about a situation where a hit almost certainly would have won the game.