As if digging Swansea out of the relegation zone wasn’t feat enough in itself, he inspired some of his fringe players to run up the club’s biggest win in years.
He even got Nathan Dyer, who hadn’t registered a senior goal since the Autumn of 2015, to score twice in 10 minutes.
And Chelsea’s on loan starlet Tammy Abraham, without a goal since October and desperately needed to cover for injured Wilfried Bony, scored twice.
Carvalhal also made sure his team kept turning the screw ruthlessly to make it a miserable night for Kevin Nolan’s promotion chasing League Two side County.
He also got them to ignore the flat atmosphere of an empty stadium and was rewarded as they hit the League Two team twice in less than a minute.