New West Ham United boss David Moyes has claimed that his recent spells at Manchester United, Real Sociedad and Sunderland have helped to make him a stronger manager.

Moyes forged an impressive reputation during an 11-year spell at Everton from 2002 to 2013, earning three LMA Manager of the Year awards and eventually being hand-picked by Sir Alex Ferguson to succeed him at Old Trafford.

However, the 54-year-old has lasted less than a year in each of his subsequent three jobs, most recently overseeing Sunderland's relegation to the Championship last season.

Moyes acknowledged that the Sunderland move was a bad one, but insists that he is a better manager now because of it as he attempts to steer the Hammers away from the bottom three following his appointment this morning.

"Yes, I think I do [have a point to prove]. I've managed five clubs since starting out nearly 20 years ago, starting at Preston and then going to Everton. My period at Manchester United is well documented and I then did something I have always wanted to do by experiencing management abroad, with Real Sociedad," he told West Ham's official website.

"It's only been the last job [at Sunderland] where I feel it wasn't a good move and I didn't enjoy the experience. So I'm hungry to make sure I get things right now. I don't know any manager who hasn't gone through negative periods, especially in the game today. I hope it gives me great strength and understanding of what is required.

"The focus here is purely between now and the end of the season. The first thing is to win the next game and build from there, and I'm sure we will be in a much stronger position before long."

Moyes's first match as West Ham boss will come away to Watford on November 19.