Found this comment from the owner of soflobulls.com channel which is the youtube channel for all things USF.
" Let me drop some knowledge here. Marlon Mack is a fluid, dynamic homer hitting tailback. I watched Mack from his first collegiate snap in 2014 through this past season from the press box. Mack tied the USF single game rushing record with 275 yards and four touchdowns in his first game ever as a true freshman. Three of the touchdowns were from 50+ yards (62, 60, 56). Look at the highlight below.
I also want to comment on the style of offense and Mack’s ability to dominate the power run game. When Willie Taggart took over at USF the Bulls played power football, ground and pound. A scheme change in the spring of 2015 forced now Western Kentucky QB Mike White to transfer, and in came Quinton Flowers and the ‘Gulf Coast Offense’ (spread). Flowers started pulling down and running a ton as USF moved away from Power-I formations. Mack has the ability to standout regardless of offensive scheme. Anyone that only watches tape from 2016 is getting an extremely limited glimpse into Mack’s full skill set as a running back. Watch more tape boys, it never lies. "
In those videos, you can clearly see Mack's vision between the tackles is quite good for those who were worried