Former player Steve Thornber joined the Iron's academy set-up in October 2017 on an interim role.
He assumes the role of Youth Development Phase Lead Coach on a temporary baiss while Kev Austin remains off on sick leave.
His most recent appointment in coaching came at Bradford City where he was Head of Academy Coaching before a restructuring saw him depart the Northern Commercials Stadium in the summer.
Academy Manager Tony Daws said: “Steve is another ex-player of the club, of which we have a few, which is great. I think it always helps having a former player as they have an affinity with the club and understand the culture. He comes in to oversee the department on an interim basis.”