Rangers signed off the transfer window with an air of disappointment after failing to strengthen in a couple of key positions. Why was clear though, was that Philippe Clement was looking to the future when rebuilding his squad and that Nils Koppen’s player trading model was going to be stuck to in an attempt to bring sustained success back to Ibrox. The signing of Neysharo Kasanwirjo is a perfect example of this with the versatile defender being considered as the long-term replacement for James Tavernier, a step up that could come closer than many would have first thought. READ MORE: Who is Ja…