Kenny Jackett knows that Pompey cannot afford to relax in their quest to accumulate League One victories.
With 14 games gone, his side are currently sitting proudly at the top of the table, with a six-point gap to Peterborough in second.
Having seen off Fleetwood on home soil at the weekend, they will now aim to beat Burton under the Fratton floodlights on Tuesday night.
But despite making an impressive start to the campaign, Jackett knows there is still room for improvement.
The Blues boss said: “Winning is a hard thing to do and we’ll always try to find a way of getting a positive result.
“You have to be humble enough to understand that every point you collect on the pitch has to be earned.
"Confidence in football is a massive thing and it can fall away very quickly, so we tell the players what they’re doing right, but also what they can do better."
“We’re almost a third of the way through the season now and our players should be encouraged and take confidence.
“But we also have to keep our feet on the floor and realise that there’s a lot of hard work hard, even if our supporters have plenty of optimism.
“Confidence in football is a massive thing and it can fall away very quickly, so we tell the players what they’re doing right, but also what they can do better.
“It’s important to have the attitude of always wanting to improve – both as an individual and also as a group.”
Pompey face a Brewers side that fell out of the Championship last term and are currently 14th in the third tier standings.
Jackett said: “They’ve won the last two and seem to have settled down now following their relegation. There’s a lot of experience in their side.
“I’m sure Nigel Clough will be looking for his players to really find their feet in this division and they’re capable of being a force.
“This is the second of two home games in a few days and we wanted to capitalise on that. We won the first one and have prepared well for the next one.”
Jackett can call upon the services of both Jamal Lowe and Ben Thompson, despite the pair colliding during the second half against Fleetwood.
He said: “They’re both fine. Ben always goes out there with the ambition of tackling everyone on the pitch.
“He shows a fantastic attitude and it’s great when we’re so committed that we’ve got two players going for that ball.
“As a manager I was pleased to see both of them get up again and carry on, especially with important games coming up on Tuesday and Saturday.
“David Wheeler’s also likely to be available after his ankle injury. He trained again on Sunday and I don’t see any issues.”
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