David Lampitt has been installed as new chief executive of relegated Portsmouth.
It was announced in April that Lampitt would be leaving the Football Association after seven years, with his most recent post being head of integrity.
The 35-year-old replaces Peter Storrie, who stepped down from his position in March with the debt-ridden club in administration and facing inevitable relegation to the Coca-Cola Championship.
Lampitt told the club's official website: "I am excited to be coming on board after the FA kindly agreed to release me early from my notice period.
"I know the club has been through some tough times, especially in the last season, but I am determined to help turn things around and bring some stability back to the business.
"I can't promise a quick fix but I genuinely believe we can put the club back on its feet.
"We will all have a part to play in this, the club staff and the playing squad, of course, but also, and probably most importantly, our extraordinary and loyal supporters.
"They have borne the brunt of the off-pitch problems over the last season with humility and stoicism, characteristics that I would like to see reflected in the club.
"I will be working extremely hard to rebuild their trust and, given time, I know that we can restore pride in an incredibly proud football club with proud traditions and a long history."