Philippe Clement admits the hope for new Rangers signing Mohamed Diomande is to develop him into a top player and sell him on for a huge profit. The Belgian spoke honestly about the player trading model he wants to help control at Ibrox alongside director of football Nils Koppen, who is also working through his first transfer window in Glasgow. Ivorian midfielder Diomande signed initially on loan yesterday and will then make a reported £4.3m permanent switch from Nordsjaelland to Rangers in the summer. Nils Koppen named some of the qualities 22-year-old Diomande will bring to the first-team an…