Rangers’ transfer decision questioned by former Ibrox defender.Rangers’ decision to let youngster Findlay Curtis depart the club on loan during the transfer window has been deemed a major misstep after Monday’s defeat to Hearts left their title dream in tatters.Curtis, 19, had been a regular in the Rangers matchday squad in the first half of the campaign, but was allowed to join Kilmarnock on a loan deal until the end of the season in February, where he has made a huge impact for Neil McCann’s side as they battle against the drop.Rewarded with a first senior call-up to the Scotland squad in March, he made his international debut as a second-half substitute in the 1-0 friendly defeat to Japan at Hampden Park. Hopeful of booking himself a spot on a plane to the World Cup this summer, Curtis did himself no harm at the weekend by scoring his third goal for Kilmarnock as they beat Dundee United 3-0 with Scotland boss Steve Clarke watching on in the stands.Curtis made his Scotland debut against Japan in March…