Danny Cowley is still searching for perfection from his Pompey troops.
A positive start to the season and has seen them collect 10 points from the opening four League One fixtures.
Throw in the impressive statistic that not a single goal has been conceded and things are looking bright on the south coast.
But ahead of Saturday’s trip to Wigan, Cowley knows Pompey still have plenty of work to do to provide a complete performance.
The Blues boss said: “It’s been a useful week and it’s been great to get back out on the grass in preparation for the weekend.
“When you’re a new group, that time on the training pitch is just so important, allowing you to keep accelerating the process of developing your game idea.
“It also helps you to keep building those partnerships and relationships, so they have been some really good days for us.
“We’ve taken some learning from the draw at Doncaster and want to show more intensity, while being ruthless with our final actions.
“As a coach, you’re always looking for that perfect, dominant performance over 90 minutes – in and out of possession and during transitions.
“Whether you’re ever going to get that, I’m not quite sure, but it’s certainly what we’re all working towards.
"As a coach, you’re always looking for that perfect, dominant performance over 90 minutes – in and out of possession and during transitions."
“There have been good elements during our games and I’ve been pleased with our work against the ball, which has helped us keep four clean sheets.
“It was nice to see the stats that put us as the second best pressing team in the country behind Leeds – and they do play with intensity.
“That’s given us a bit of a benchmark and it’s something that we want to continue doing because it’s much easier to score if you win the ball back close to the opposition’s goal.”
Pompey’s opponents came out of administration last season and have since added former Fratton favourites Tom Naylor and Jack Whatmough to their ranks.
Cowley said: “Wigan are in a much more stable place now and that’s really good to see, but we know it’s going to tough.
“They’ve obviously recruited very aggressively and have got an incredible depth to their group, so it should give us a good idea of exactly where we are.
“I only worked with Tom and Jack towards the end of last season, but they’re both really good players.
“Jack is, for me, one of the best centre-halves in the league, while Tom was a leader of this group, but they’re even better people.
“Unfortunately, it wasn’t possible for us to keep them, but we do wish them well for their future careers.
“Of course, when it comes to 3pm on Saturday, we’ll be really competitive and doing everything we can to win the game.”