Sunderland have confirmed that Jack Ross is the club's new manager.
The 41-year-old, who was in charge at Scottish club St Mirren, has signed a two-year deal with the Black Cats. His assistant manager will be James Fowler.
He replaces Chris Coleman, who left last month.
Ross is the reigning Scottish Championship Manager of the Year and PFA Scotland Manager of the Year.
Under him, St Mirren won the Scottish Championship title in 2017-18.
Club chairman, Stewart Donald, said:
Mr Ross added:
His playing career included time with Clyde, Hartlepool, Falkirk and St Mirren. He moved into coaching as assistant manager at Dumbarton prior to a spell at Hearts.
He took charge of Alloa Athletic in December 2015, before leaving for St Mirren.
There have been other changes behind the scenes at Sunderland.
Academy manager Jim Sinclair hashe is going to retire. The head of recruitment has also left the club, along with the director of change and the head of marketing. Several other staff are also set to leave.
Tony Davison has joined from Tottenham Hotspur in the new position of managing director.