The former Old Trafford defender says the 40-year-old has the qualities to become a top manager but says something with experience is needed at the club
Following the sacking of David Moyes on Tuesday, the 40-year-old has been named as United’s temporary manager until the end of the season, while Louis van Gaal has agreed a deal to join Old Trafford following the end of Netherlands’ World Cup campaign this summer.
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In his managerial debut, Giggs guided United to a 4-0 victory over Norwich City on Saturday but Berg, who made over 100 appearances under Sir Alex Ferguson, believes the Welshman needs an experienced coach alongside him.
"He doesn’t have the experience of doing it,” Berg told talkSPORT.
“Maybe he can become a top manager later on but at the moment he’s not had that experience and for United to choose a guy who has not done it before is a little bit of a gamble.
"But then every manager you hire will be a gamble because you have seen with [Louis] van Gaal, he has only stayed one season or two seasons at a club and then he has to go. Every time you choose a manager it’s a little bit of a gamble. Not everything is going to be 100 per cent sure.
"Ryan Giggs has all the qualities that’s needed to be a top manager but he has not done it before. If he’s going to be the new manager I would hope he will bring with him someone with a bit more experience, whose been a manager before and who can guide him.
"Even though Sir Alex [Ferguson] is still there, he wouldn’t be there every day to do all the detailed discussions and the small, small things.
“With Paul Scholes, Nicky Butt and Phil Neville, he’s got great football people, good decision-making and people who know it but they don’t have big experience as managers either.
"So if they want to go that route, they should bring an experienced one in who can help with making the right decisions."