After a couple of disappointing results which threatened to derail their season and undo all of Philippe Clement’s good work, how transformative could that pressure-releasing victory over Hearts in the Scottish Cup semi-final be? It certainly lifted the mood a little, Rangers triumphing at Hampden Park to set up the first cup final meeting with Old Firm neighbours Celtic in two decades. Mohamed Diomande, back in the XI after a brief spell out, was terrific, writing his place in magic marker on Clement’s team sheet for the remainder of the campaign. Leon Balogun looked far more stable at the ba…