And in his time at the Fratton helm, Danny Cowley has turned to a large number of players on the pitch.
In fact, there’s been 41 men used by the Blues boss since he succeeded Kenny Jackett.
Of those 33 have played five or more times, giving a reasonable basis to assess their performances with the star and crescent on their chests.
So after that landmark 50th game with Pompey sweeping past relegation-threatened Doncaster, we’ve searched through our ratings database to see who’s performed best – and worst – under the former Lincoln boss as well as looking at who’s played the most.
Here’s what we’ve found.
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13. Paul Downing- 6.5
The central defender had a tough spell at Fratton Park and was made no easier by Cowley who only used the 30-year-old seven times before his January loan exit. Downing’s score has been taken from six games after failing to play long enough during his final outing against Wycombe in November. Photo: Joe Pepler
14. Craig MacGillivray - 6.6
The Scot played every game following Cowley’s arrival last March, taking part in all 12 fixtures. The keeper was wanted by the new boss but failed to renegotiate a new extension with the club and has since taken over the number one shirt at Charlton. Photo: Bryn Lennon
15. Miguel Azeez - 6.6
The Arsenal loanee had an unproductive loan spell during the first half of the season where he would make 10 appearances. The 19-year-old was marked from nine of those games and after an underwhelming stay was recalled by the Premier League side in January. Photo: Stephen Flynn
16. Kieron Freeman - 6.6
The 29-year-old has had to make due playing at right-back and at right centre-back but has impressed in spells during his Fratton return. The defender has played 25 times this term but looks to spend a period of time on the sidelines after sustaining an ankle injury after getting concussion. Photo: Jason Brown