There was an idea floated by Whitey Herzog years ago that would take out the DH, but allow teams to PH for the pitcher whenever they liked, but the pitcher (or any position player I suppose) would get to remain in the game. The PH would be done after their AB. I thought that was a very interesting idea. Wisconsin high school baseball does something like this with the re-entry rule. I'd be willing to allow that with a baserunner, too. The runner could enter the game to run for another player, but that player could re-enter at the end of the inning and the DR would be done. Just some thoughts.