With all this Rangers transfer talk swirling around, you’ll have done well to stay focused on the small matter of this weekend’s Scottish Cup Final. The first Old Firm Final in 22 years in the competition, there are subplots aplenty with Philippe Clement yet to overcome Brendan Rodgers and Rangers’ record-holding trophy haul under genuine threat. But another interesting avenue of exploration involves the turnover of the squad with several of those in the Rangers ranks increasingly unlikely to be around next season. Philippe Clement has pretty much said so himself. But as the weekend approaches…