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...
21. Sunderland - Luke O'Nien
A player Pompey have come up against in their recent League One rivalry with Sunderland. The versatile O'Nien's an established League One player and will surely be looking to test himself in the Championship if the Black Cats miss out on promotion again. Photo: Lewis Storey
22. Swindon - Scott Twine
The 21-year-old midfielder is the Robins' prized asset. After netting seven goals on loan at Newport during the first half of the season, Twine's bagged twice in nine game as the Robins aim to avoid relegation. Photo: Alex Davidson
23. Wigan - Kyle Joseph
After their summer firesale, Joseph is now the Latics' most bankable asset. The 19-year-old striker has netted five goals for the crisis club and attracted interest from Tottenham and Barnsley in January. Photo: Jan Kruger