ST. LOUIS — The Cardinals unveiled a new look to their bullpen Friday night at Busch Stadium. With Giovanny Gallegos moving up in the game and Jordan Hicks moving back, the Cardinals got through the critical sixth and seven innings and then rookie Brendan Donovan capped a three-RBI night with a two-run single in the seventh to help cement a 7-3 victory over the Cincinnati Reds. Gallegos, who started the season as the closer, fanned two in a scoreless sixth inning. Hicks, another former closer, retired four men in a row before left-hander Genesis Cabrera and right-hander Ryan Helsley finished u…