Garret is the HEAD COACH, AKA in charge of both sides of the ball.
Beyond that and much more importantly he was hired in 2007, a year in which Sean Mcvey was too much of snot nose to buy a beer and yet he has built a team greater than any Garret has EVER Coached in a handful of years.
But I’m sure with enough years of ‘training’ and the right magical combination of actual x and o coordinators on BOTH sides of the ball he can be a serviceable head coach down the road (here’s to hopin’ the road is less than two decades long (which he is well on pace for)).