Preston boss Darren Ferguson has said Manchester United striker Danny Welbeck is mulling over an invitation to return to Deepdale on loan next season.Welbeck, 19, made eight appearances for North End earlier this season, scoring two goals before returning to Old Trafford with a knee injury. [LNB]Ferguson told BBC Radio Lancashire: "Danny's having a think about it - that's not a stick on. [LNB]"He's not the only one - I want another six or seven," he added. [LNB]Welbeck's United team-mate, midfielder Matty James, is set to return on loan for a second season. [LNB]"Matty's almost done and dusted," said Ferguson, who has already begun a clearing-out process after a 17th place finish in the Championship. [LNB]"It's going to be a busy summer and an important summer for the club because 17th isn't good enough - it's not a massive rebuilding job but I think everyone can see there needs to be a freshness to it. [LNB]"There needs to be a different mentality and hopefully there won't be a repeat of what's happened this season." [LNB][LNB] It's going to be a busy summer and an important summer for the club because 17th isn't good enough Preston manager Darren Ferguson Meanwhile Preston have decided not to renew Chris Sedgwick and Liam Chilvers' contracts which will end on June 30th. On-loan defenders Elliott Ward and Tom Williams will return to Coventry City and Peterborough United respectively. [LNB]Centre-back Youl Mawene, who is also out of contract in June, is set to discuss his future soon. Striker Neil Mellor leads a host of players put on the transfer-list along with Eddie Nolan, Stephen Elliott, Neill Collins, Neal Trotman, Michael Hart, Richard Chaplow and Darren Carter. [LNB]"I'd hope to get players in soon if I can, that's better for us but generally not a lot of business is done at this stage of the year," added Ferguson. [LNB]"If I can get the business done in terms of who's coming in and out, I know we'll have a good season next season."