I would rather it end that way than because one team ran out of players to use. The game is built for 9 innings, when you get to 14+ innings you aren't really playing the game the way it was meant to be played anyway. Playing an extra 1/3 of a game is enough, after that you are getting into unsafe/poor play. Seriously? All that rule would do would be to make managers more likely to burn through their entire bullpen and their bench in 9 innings, which will prolong most games, not shorten them. Instead of being out of players in the 15th or 16th inning, they'll be out of them in the 11th. Using your example, on the last day of the season, teams should never run out of players. Most have 32-33 available. "Unsafe/poor play"? Since when should endurance not be part of a sport? The Falcons defense being fatigued caused them to lose the Super Bowl. That's the nature of sports my friend. Guess what, hitters get tired as games drag on and mediocre pitchers that managers save for extra innings often times can mow down tired batters. That's always been part of the game. Even if this was a problem, though I don't think it is, there's a lot more reasonable ways to address it than to fundamentally change the game. Make the DH universal, and then the manager won't use his entire bench to PH. As an aside, if the NL had the DH, the Brewers would still have Khris Davis in the middle of their order. Or you could go with a 27 man roster, and designate 2 guys as only eligible if the game goes extra innings.