Younger readers will probably wonder why bullpen carts were necessary back in the day, even in smaller stadiums such as Fenway Park (seen here in this postcard). The reason is obvious in its simplicity: Relievers pitched longer per-game stints back then and spent most of the season in a high state of fatigue. The cart rides helped them preserve precious energy for game conditions.
eBay Item of the Day: The Why of Bullpen Carts
