It wasn't working though.... not tactically anyway.
We were under pressure the whole second half and an equaliser looked like an inevitability from the 50th minute mark onward. Yet, Cooper done nothing to combat it until the 80th odd minute. His two subs before that were like for like.
the only reason we hadn't conceeded was down to the players, both ours and theirs. Just hoping and praying that we don't concede isn't something a PL manager should be opting for, not from the 50th minute anyway.
He got it wrong, pure and simple. Whether it was Coady making a silly error or someone turning off at the back post, the chances of it happening are much higher if you just invite pressure for a whole half without doing anything to combat it.