Well not really. Haslam and Burkinshaw were best mates... after the 78 world Cup, Haslam (with his established south american contacts) called up Bill Nicholson and Burkinshaw and asked them if they were interested in signing some of the Argie team that wanted to earn lots more money in Europe.
Ardiles and Villa turned out to be 2 of the players in question, and when the various parties met, Ardiles was a bit confused and thought he was signing for us. He was quoted in various Argentinian sources (and the Guardian) as saying "I'm off to England to play for Sheffield United". That soon got cleared up as there was no way SUFC would pay the fees or the wages for them, but it was Haslam and his mates that brokered the deal for Spurs.
SUFC's scouts there on the other hand had their eyes on a less well known talent, a 16 year old, known to be a bit special. His club asked something close to £650,000 for him - far too much for SUFC as they took the view he was unproven. So instead of buying Maradonna, we actually brought the cheaper Alejandro Sabella back to Sheffield.