Pedro Caixinha reckons he had an impossible job at Rangers.In fairness, he might have been right but he also splashed a lot of cash in the wrong places when he made his signings.He wasn't helped by the fact Rangers didn't get a director of football in until after he had made most of his signings but once he lost to Progres Niederkorn there was no going back.Speaking about his time, he said: “Rangers were involved in a process of descent to the fourth tier before I arrived and that completely removed the possibility of dethroning Celtic, in structural, financial and competitive terms.“At that time, Aberdeen had taken the place of Rangers.“Now, Rangers and Celtic are second and first, (in the Premiership ) respectively, but the truth remains