Lee Bradbury admitted the sale of Nigel Atangana to Pompey has left him with a midfield void to fill.
But the Hawks boss added that a new striker remains his top priority.
Atangana was a class act for Conference South Hawks and it was inevitable he would move on to the Football League after just one season at Westleigh Park.
Although the fee paid by Blues boss Andy Awford remains undisclosed, it is believed the Hawks have included a sell-on clause in his two-year contract at Fratton Park.
The talented Frenchman, who Bradbury picked up from Gravelines last summer, is likely to pull on a Pompey shirt for the first time in their friendly against his former club on Saturday, July 12.
But the Hawks manager insists he has other more pressing problems to solve before turning his attentions to replacing the talented midfielder.
Bradbury has spent most weeks since the end of last season trying to solve his team’s goalscoring problems – a process accelerated by the sale of Sahr Kabba to Lincoln City and the breakdown of contract talks with fellow striker Dennis Oli.
A lack of goals proved the Hawks’ Achilles heel as they narrowly missed out on the play-offs and an FA Trophy final at Wembley.
And although Bradley Bubb has arrived from Aldershot Town to help share the goalscoring responsibility, all other efforts to attract a 20-goal-a-season man have been thwarted.
‘Nigel’s departure leaves us with a gap to fill but we have players who can fill in that area,’ said Bradbury.
‘We have signed Brian Dutton from Salisbury who can play in that position.
‘He gained two promotions from this level and I also have the option of pushing Scott Donnelly and Perry Ryan a little higher up the field.
‘My main concern at the moment is bringing in a couple of new forwards.
‘If I can bring in a 20-to-25-goals-a-season striker it could just make the difference and get us into the play-offs.
‘I am close to doing that and should know if I have been successful in the next couple of days.
‘Hopefully I can get someone in in time for the start of our pre-season next Thursday.
‘Dennis Oli is looking elsewhere at the moment but that is also a deal we may revisit.’