With the World Series opening tonight in Kansas City, the Giants are no doubt feeling their oats. They’re coming off of a three-homerun performance in their game five win over the St. Louis Cardinals, which landed them their third World Series appearance in five years. However, the Giants should be wary, for power is a fickle friend.

“Game-changers in baseball are power, speed, velocity, and defense,” says George Washington University head baseball coach Gregg Ritchie. “Then there’s also the intangible stuff—the total willingness to do anything it takes to win. It’s drive. A mentality. You see Josh Harrison play and you just know this guy has it.”