MANCHESTER United supremo Alex Ferguson has admitted his biggest transfer blunder - failing to capture inspirational Dutchman Ruud Gullit. Ferguson, who backs his judgment in the wheeling and dealing of players against anyone in the modern game, said he was put off by the player's agent, but should have reconsidered. Gullit was offered to Manchester United when he was on the verge of quitting AC Milan 19 months ago but Ferguson stuck to his intuition, and policy of not buying foreign 'oldies', and passed on the deal. 'I must admit I have more than a tinge of regret not taking Gullit when he was on offer. I'm afraid his agent put me off,' Ferguson said. 'You can't beat the clock and I wonder how long some of the highly-paid foreign players in the Premier League will be here.' Gullit, a former European Player of the Year and multi-medal winner on the continent, joined Chelsea on a free transfer from Milan and is now player-manager, taking over from England boss Glenn Hoddle to continue the Blues' transformation from sleeping giant to championship contender. Ferguson, well known for advising caution when buying abroad, nevertheless had a summer spending spree which saw Ole Gunnar Solskjaer, Ronnie Johnsen, Karel Poborsky and Jordi Cruyff join Old Trafford. And there is also no doubt the effect Eric Cantona has had on United since joining them from Leeds. 'I am certainly happy with my summer signings,' Ferguson said. But the United manager applauded his former captain, Middlesbrough boss Bryan Robson, for his ''adventurous' foray into the Brazilian market. 'Bryan [Robson] has been very adventurous in his decision to bring in players from Brazil, but it has brought him a few headaches as well. 'I am sure Bryan will see the advantages of going for such skilful players pay off in the long-run, but his experiences with these players underlines the fact that you have to think very carefully about who you buy - and from where. 'My view is that it is a matter of balance. At United you will see not only a combination of youth and experience but of home-grown players - many of them local - working alongside players from other countries. That way, I think, we create a lot of harmony in the team and hopefully that will keep us winning.'