Reps matter.  And for Texas A&M ’s redshirt quarterback Brady Hart, the Maroon & White Spring Game was another outing to prove to everyone why he could be the future of the program and the backup to Marcel Reed .  After his day, he made his case for why he is the prime candidate to be the guy who can check into the game at any moment and shine when it’s needed.  Not only did he help Team Maroon, but he helped himself get meaningful reps with his teammates that he could play with down the stretch, barring any injuries or unforeseen circumstances.  In his first year in Aggieland after spending time as the starting quarterback at Cocoa High School, he completed only 5 of 10 passes for 62 yards, and he surpassed those numbers in the Spring Game.…