Two things…
First, the Vols press goes from crazy intense in the beginning to much less at the end. I think it lets them keep games close, but stops them from closing out. I don’t know if it’s because the players are tired or because they commit so many fouls at the beginning that they can‘t afford any more at the end.
Second, they look ragged and out of place in their half court zone defense. Just a guess, but they are spending so much energy trying to generate a turnover that they don’t play old fashioned defense.