It’s no wonder Marshall Jaggers is Alpha Mechanical Service’s go-to man for a growing fleet of cars and trucks. Jaggers has been working on cars since he was 16 and played every imaginable role in auto racing, including driving them himself and setting up cars for Ben Rhodes and his own family members.  He’s even been a commentator on racing broadcasts. Jaggers is a perfectionist when it comes to the look of the Alpha logo. But Jaggers’ main job as…