Martin Hinshelwood is set to quit his Fratton Park recruitment role.
And his exit will coincide with a restructuring of Pompey’s scouting network.
The Blues’ head of recruitment is leaving to take up a scouting position with an unnamed Premier League club.
Hinshelwood had initially been appointed Pompey’s chief scout by Richie Barker in January 2014.
When Barker left his role as manager in March along with Steve Coppell, the 61-year-old remained in employment at Fratton Park.
Hinshelwood’s duties included serving as the club’s southern scout, with Gary Bell responsible for the north of the country.
Now that is to change as the club seeks to revamp the existing system amid the former Crawley chief scout’s departure.
Pompey chief executive Mark Catlin said: ‘Martin is leaving to take up a scouting/recruitment role with a Premier League club.
‘We are now going to be advertising for a new head of recruitment,but, in the meantime will be getting someone in as cover.
‘Martin has been working as a southern scout, but recruitment is an area currently under review by the club.
‘We are seeking to restructure that side of the club and are keen to get things in place before the start of next season so we know our targets in the summer.
‘In the meantime, there will be somebody coming in on a short-term basis to fill the void left by Martin.
‘Also, we are already looking for a long-term replacement as we try to improve this area for the future.’
It is the end of Hinshelwood’s second spell at the club.
He was previously appointed Pompey youth-team coach by one-time manager Jim Smith and went on to manage the reserves.
He left upon the return of Alan Ball as boss in 1998, finding work at Brighton and Crawley.
Meanwhile, Pompey’s head of performance analysis, Marc Rochon, has moved on.
Promoted from his position of Academy analyst in the summer, Rochon has clinched a job with top UAE side Al Ain.
He had replaced Mark Thomas during the close season, following his departure to join Michael Appleton at Oxford United as head of performance.
The Blues have been advertising for Rochon’s replacement in the analysis department.