Since succeeding Paul Cook in the hot seat in June 2017, Jackett's led the Blues to Checkatrade Trophy glory – something he’ll be aspiring to do again this term once it resumes, with a final against Salford City on the agenda. What's more, Pompey are firmly in the frame to enjoy a Championship return when the campaign recommences, sitting fourth in the League One table and two points outside the automatic promotion places. In total, Jackett has made 41 signings, with some faring better than others. Here, sports writer Will Rooney selects his best XI from those who have arrived under Jackett – but do you agree?
5. LB - Steve Seddon
What an addition he's proved to be since joining in January. The Birmingham loanee has displayed a potent attacking threat down the left wing, while his dead-ball deliveries have been a revelation. | Freelance Photo: Robin Jones
6. DM - Tom Naylor
An excellent capture on a free in the summer of 2018. Gave Pompey the bite they lacked during Jackett's first season. Naylor's proved invaluable and commands the respect of his team-mates and boss, having been made captain this term. | Freelance Photo: Joe Pepler
7. DM - Ben Thompson
Simply has to be in the team. Underlined his quality on debut against Oxford after joining from Millwall on loan last term. Established himself as one of the best midfielders in League One. Return to parent club devastated Blues' promotion push. | Freelance Photo: Joe Pepler
8. RW - Marcus Harness
Tough call with Ryan Williams also doing well this season. But it's Harness' exploits of eight goals and seven assists since joining from Burton last summer that gives him the nod. Plenty of raw ability and scope to improve aged 24. | Freelance Photo: Joe Pepler