Moyes' spell at United certainly didn't go to plan as he was sacked after less than a season.
He told Bein Sport: "I think I'll always look back and regret leaving Everton because of the team and the players I had built at that time.
"But I'll never be regretful for joining Manchester United or doing what I've done.
"I think in football we all make decisions – Andy will tell you as much as anything – some work for you, some don't work for you.
"I think on the journey of being a football player or football manager you're never always going to have good times. You're always at times going to have ups and downs."