Horn is elite. Teams never threw against him and they often left him one on one and shifted the safety to help Muk and Jammie Robinson.
Muk and Robinson got burned a few times and struggled with consistency. They have cumulative stats because teams picked on both of them.
Muschamp runs cover 3 and 4, that rolls into pattern match man concepts in some instances, based on over/under calls and match ups. Just like Saban and Smart. He’ll run cover 1 and zero if he’s blitzing.
Muk is stiff in the hips, has problems with balance at the top of routes/breaks, and his ball skills need work. Robinson got lost a lot and cheated with inside leverage and was beat to the sidelines and corners. Muk can be fine if he’s able to be physical at the line and disrupt routes. And if he shows better ball awareness and uses his size. But there is a reason most teams wanted him at safety.
They should be able to figure this out, because Horn can shut down one side of the field.