DETROIT — One team has the reigning MVP and another player who just won the Triple Crown. The Oakland Athletics will try to counter all that by sending — who else? — a rookie to the mound. “We’ve been the ‘David’ all year,” A’s right-hander Jarrod Parker said. “I think obviously it’s a role and an image that we’ve kind of taken on and been able to embrace and it’s fun.” Parker will start against Detroit ace Justin Verlander in Game 1 of the division series Saturday night. The AL Central-champion Tigers are making their second straight playoff appearance, but …