Hansen wrote in the Telegraph: "After 10 years at the club, and with his 49th birthday approaching next week, I think it is inevitable that he will leave Everton in the summer because there is a sense that he has taken the club as far as he can.
"If he goes, Moyes will not be deserting a sinking ship. He has been loyal, committed and dedicated throughout his decade at Everton, but it really is time to move on.
"From listening to him, it is obvious that he is ultra-ambitious and wants to prove himself to be a top-class manager. And the reality is that, although he has worked phenomenally hard to stop Everton falling off the face of the Earth at times, the guys who are ultimately remembered as the top managers are those who win Premier League titles and Champions Leagues.
"Thatâ€™s why this summer seems to be the right time for him to take on a new challenge elsewhere if a top job comes up."