The Netherlands have appointed Dick Advocaat as head coach for a third time.
The 69-year-old is now the Fenerbache manager and had announced that he would retire at the end of the season.
Advocaat and Gullit have been appointed until the end of Netherlands' qualifying campaign, with qualification set to extend their stay with the Oranje.
Hans van Breukelen, the KNVB's technical director, said: "There were two scenarios".
Advocaat, now employed at Turkish club Fenerbahce, has had two previous stints as national boss, from 1992-1994 and 2002-2004, and three as assistant, including most recently a year ago. They trail Group A leaders France by six points, while Sweden and the Bulgarians are three and two points ahead respectively.
Fred Grim will remain in interim charge until Advocaat and Gullit join together, which looks likely to be when Fenerbahce's involvement in the Turkish Cup is over.
"There were two scenarios".
It's Advocaat's third spell in charge following previous reigns between 1992-94 and 2002-04, while he also served as assistant in 2016.
"We went for the second option".
He succeeds Danny Blind at the helm after the former Ajax boss was relieved of his duties in March following some disappointing performances and results in the World Cup 2018 qualifiers. According to local media Louis van Gaal, Ronald Koeman, Frank de Boer, Henk ten Cate and German coach Roger Schmidt all turned the job down. "Henk also knew that I could talk to Dick".
"I never promised Ten Cate anything".
"I think it's very rude of him to let someone listen to me in a conversation without telling me".
In this Sunday June 20, 2004, file image Dick Advocaat, coach of the Netherlands soccer squad, gives a press conference at the municipal stadium in Albufeira, Portugal's southern Algarve region during the Euro 2004 soccer tournament.
The vastly experienced Advocaat has previously coached Russia, Belgium and Serbia, as well as club teams including PSV Eindhoven, Glasgow Rangers, Zenit St. Petersburg and Sunderland.