Giancarlo Stanton is Yankees’ enigma only he can solve

Imagine you own a vintage luxury-car collection. Yes, let’s dream big. You show off your garage to a visitor, describing each vehicle in loving detail. Then you turn to your 1962 Aston Martin DB4 GT Zagato. “My most expensive purchase,” you say wistfully. “Can’t get it going recently. Brakes, shocks, steering — it’s been one…