Steve Kean says David Moyes is excited about his move to Real Sociedad.
Moyes was named as the next Real Sociedad boss late on Monday night - seven months after he was sacked as Manchester United manager.
Former Blackburn Rovers boss Kean was No2 to Chris Coleman at Real Sociedad.
Kean told Sky Sports News: "I have spoken to David. He is very excited about the move. It's the right fit for him.
"Basque players like to work hard and that's the way David coaches. He'll love the club. He'll love the people.
"The only challenge he'll have is when he does really well - which I'm sure he will - is hanging on to the better players because they tend to sell."
