The apparent ‘Manager of the Month’ curse failed to halt Pompey’s storming start to the season.
And there was to be no new boss ‘bounce’ for Burton following Dino Maamria’s elevation to the Pirelli Stadium hot seat.
Instead, the match followed the League One formbook, with a 2-0 victory for the visitors that saw them keep pace with Ipswich at the summit.
A Sam Hughes own-goal gave Pompey the lead before Colby Bishop converted an Owen Dale cross to wrap things up late on.
And fresh from being collecting his divisional prize, Danny Cowley was delighted to see his side collect another three-point haul.
The Blues boss said: “It was a solid away performance and it’s never easy coming to Burton on a Tuesday night – especially when they have a new manager.
"Sometimes you need the side to have a solid display and then one or two to just make that little difference."
“We knew they would play with more energy and intensity, but I thought we were determined and resolute.
“There was also enough personality on the ball from us to find those important moments that won the match.
“We had a good way into the game and Dane threatened on the counter on a couple of occasions in the first 15 minutes.
“Then it got a bit too direct and we couldn’t stamp our authority on it. There were a lot of fouls and we couldn’t find our rhythm.
“But we came out strongly in the second half and there were some good performances, with Owen providing a real spark.
“Sometimes you need the side to have a solid display and then one or two to just make that little difference.
“The two centre-halves were colossal and it wasn’t easy for the back four because we lost Joe Rafferty, who injured a stomach muscle against Peterborough, but we adapted to that.”