From the goalkeeping department up to the strikers, there’s strength in depth in every position and it's a key reason why the Blues sit fourth in the table.
However, there is always room for improvement.
Pompey are always looking how they can bolster their set-up to progress their quest up the football pyramid.
Already, Kenny Jackett and his recruitment team will be putting together early plans for the summer window – despite the manager's contract still unsettled.
Whether the Blues achieve promotion to the Championship or not, signing players in League One this season is always a useful starting point.
And we have picked out one player from all 23 of Pompey’s rivals who would improve the current squad...
5. Burton - Joe Powell
It's been a challenging season for relegation-battling Burton, although Powell been one of the eye-catchers, netting three goals and creating five. Photo: Nathan Stirk
6. Charlton - Chuks Aneke
The striker's been a target for Pompey previously. Aneke has scored 11 goals this season at a sublime rate of 0.89 per 90 minutes. He's out of contract this summer and could well re-emerage on the Blues' radar if they go up. Photo: Pool
7. Crewe - Charlie Kirk
The left-winger has made the step up to League One look simple. Kirk has registered five goals and four assists and was wanted by Charlton last month. Should Ronan Curtis depart in the summer, Kirk could be the replacement. Photo: Lewis Storey
8. Doncaster - Taylor Richards
The on-loan Brighton forward has thrived in his first taste of senior football. Richards has recorded five goals and four assists and will surely be in the Championship next season. Photo: Alex Pantling