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...
17. Peterborough - Jonson Clarke-Harris
The striker has filled the void of Ivan Toney magnificently at London Road. Clarke-Harris has already plundered 21 goals and is inspiring the Posh's automatic promotion push. Photo: Nigel Keene
18. Plymouth - Luke Jephcott
The Wales youth international has been one of the breakthrough stories of the season. Jephcott, 21, has scored 18 goals in all competitions and looks destined for much bigger things. Photo: Joe Pepler
19. Rochdale - Ollie Rathbone
The midfielder came through the Spotland academy around the same time as Pompey's Andy Cannon. Rathbone has been a regular for Rochdale this season, featuring 33 times. He's capable of playing in the engine room or on the left. Photo: Pete Norton
20. Shrewsbury - Aaron Pierre
Another who Pompey have had on their radar before. Pierre has proven a rock in the Shrews' defence and scored four goals. Kenny Jackett always likes his centre-backs to have a threat from set-pieces. Photo: Nathan Stirk