I'm surprised he's MLB. I thought he'd be an ILB in a 3-4 or an OLB in a 4-3.
He's definitely an "off ball LB" but to play MLB and take on as many OL as a MLB typically does is not something he was asked to do or showed in college. Its his coverage that sets him apart. Typically MLB in a 3-4 isn't asked to cover as much. Usually its a 2 down LB that goes off the field on passing downs when teams go to nickel or dime defense and bring an extra DB on the field.