For three seasons, UTEP's cornerbacks tested the theory that no man is an island.
From the perspective of those corners, the Miners' 4-2-5 defense was quite simple in theory: lock up with the receiver on the outside, chase him around and keep him from catching the ball.
Actually executing that, for players not named Richard Sherman, is considerably harder, which is why most schools in Division I don't even try.
UTEP isn't trying any more. There was some mixed success in the first three years of Sean Kugler's tenure at UTEP, none of which came early last season when the Miners dug a statistical hole that left them as one of the worst pass defenses in the nation (they finished 110th in passing yards allowed).