David Moyes has been handed a six-year contract by Manchester United and will succeed Sir Alex Ferguson on 1 July.
Moyes, who leaves Everton after 11 years in charge at Goodison Park, was Ferguson’s recommendation to succeed him as manager at Old Trafford.
Moyes, 50, was out of contract at Everton at the end of the season.
“We unanimously agreed on David Moyes,” said Ferguson, who announced his retirement on Wednesday after 26 years as United boss.
David Moyes’s journey
Started his playing career at Celtic and finished it at Preston, where he played alongside young loan signing David Beckham between February and March 1995
Ten months after guiding Preston North End to the Division One play-off final, Moyes took over at Everton, replacing Walter Smith in March 2002
Handed Wayne Rooney his Premier League debut in August 2002 before selling him to Manchester United two years later for an initial £20m
Steered Everton to a fourth-place finish in 2005 and a place in the qualifying stages of the Champions League
Took Everton to the FA Cup final in 2009, where they lost 2-1 to Chelsea
“David is a man of great integrity with a strong work ethic. I’ve admired his work for a long time and approached him as far back as 1998 to discuss the position of assistant manager here.
“There is no question he has all the qualities we expect of a manager at this club.”
Moyes, who will be introduced as United boss in “due course”, said it was “a great honour” to be appointed as the new manager of the Premier League champions.
“I am delighted that Sir Alex saw fit to recommend me for the job. I have great respect for everything he has done and for the football club,” added the Scot.
“I know how hard it will be to follow the best manager ever, but the opportunity to manage Manchester United isn’t something that comes around very often and I’m really looking forward to taking up the post next season.”
Moyes, described as having “all the skills needed to build on United’s phenomenal legacy” by incoming chief Ed Woodward, also paid tribute to current club Everton and vowed to remain fully committed until the end of the season.