I was going to say the same exact thing. You play the 10th and 11th and if still tied, you get a tie. I hate the idea of a tie just as much, if not more, than putting a runner on second base. But why not compromise... if the game is still tied after the 12th, go ahead and put a runner on second base. Still not ideal, but it allows 3 extra innings for a "true" finish, while also all but eliminating the possibility of a 16-17 inning marathon.