Michael Appleton has told fans not to expect touchline fireworks during his Pompey tenure.
The Blues boss makes his Fratton Park debut on Saturday for the visit of Leicester City.
He was the picture of restraint during his managerial bow at Watford last weekend.
Certainly none of the high-octane antics predecessor Steve Cotterill used to produce from the dugout.
Instead, Appleton spent the entire match stood inside the technical area, quietly analysing the performance of his players.
No ranting, no raving, even the referee got off lightly during the 2-0 defeat for the visitors.
It’s a style he insists is part of his managerial make up.
And it’s a sight Pompey supporters will be getting very used to.
He said: ‘I’m not someone who lets his emotions get carried away.
‘If you do that and get too emotionally attached to it you don’t see what’s happening or you don’t have a clear picture of what’s happening.
‘There will be times when I probably lose my rag and I would expect every manager in the country to be the same.
‘But ultimately, to make good, clever and right decisions, I need to be fully focused and in control of myself.
‘When you go into coaching you tend to have two options.
‘You either want to be a coach and stay on the coaching field or you want to be the person who makes the big decisions at the right time.
‘I’ve been quite clear from day one as a coach that I wanted to be a manager and that’s where I find myself.’
Pompey will be seeking their fourth successive Fratton win on Saturday.
They have previously beaten Barnsley, Doncaster and Nottingham Forest.