Filip Helander is very much a case of what might’ve been at Rangers. Probably the most talented technical defender the club has had in recent seasons, the big Swede was a solid and dependable option at centre-half whenever he played for Rangers. The problem – as has been the case for several high profile and expensive signings at Rangers in recent season – is that he didn’t play enough. Filip Helander cost Rangers £3m in the summer of 2019 but only managed 60 appearances across four seasons in Glasgow before being released at the end of his contract. To put that into perspective, it’s 15 games…