Dick Advocaat has been appointed as manager of the Netherlands for the third time.
The former Sunderland boss, who left Wearside early last season, has been in charge of Fenerbahce this season and had planned to retire at the end of the campaign.
However, he has been tempted back by the opportunity to turn around his national side's fortunes.
Advocaat will be assisted by former Newcastle United boss Ruud Gullit.
Advocaat's Fenerbahce side are currently third in the Turkish Super League, eight points adrift of leaders Besiktas with four games to go. Jeremain Lens, who Advocaat brought to Wearside in a multi-million pound deal last summer, has been a key player on loan and has repeatedly stressed his desire to turn his deal into a permanent one.
That is unlikely to be affected by Advocaat's departure, but serious doubts remain about whether the Turkish side can stump up the funds. Sunderland are determined to recover most of their investment last summer on a 29-year-old who has enjoyed a successful season.
Advocaat and Gullit face a tall order in their new role, the Netherlands failing to qualify for last summer's European Championships.
They are also in danger of missing out on the 2018 World Cup, currently fourth in their qualifying group with just three games to play.