Slew, still only 18, joined Rovers in a shock £1m move just minutes before Thursday night’s Premier League transfer deadline.
He had started only eight senior games for the Blades and signed a new two-year deal with the club on the eve of the new season.
However, amid on-going pressure to raise funds as a result of the club’s relegation to League One, the Blades deemed it necessary to cash in on his talent.
Striker Daniel Bogdanovic was also sold, to Blackpool for around £100,000, and Norwegian winger Kristoffer Lokberg joined Ranheim on loan.
“There is no secret about what we have been trying to do – we have been trying to get money into the club,” said Wilson.
“This is nothing that should take anyone by surprise. We have to maximise the situation for ourselves and that’s what the people at the club have done.”
Wilson insists that Slew’s long-term prospects would have been better served by staying at Bramall Lane. His new employers also signed Nigerian international striker Yakubu from Everton on Thursday and have other big name strikers on the payroll in the shape of Jason Roberts, David Goodwillie and Ruben Rochin.
“In my view, Jordan would have been far better off staying with us but that didn’t become an option,” Wilson said. “When this situation comes along it’s difficult not to let a player go.
For full story read tomorrow’s Yorkshire Post.