Outgoing chief executive James Bisgrove didn’t half leave Rangers in the lurch this summer. The former UEFA exec had worked his way up to the top executive role at Ibrox after revamping the Rangers commercial department. But only one year into his tenure as the Ibrox CEO, Bisgrove’s head was turned by the lure of the Saudi Pro League. The footballing project in the Middle East has convinced plenty before James Bisgrove, and will do so to plenty after, with the new Al-Qadsiah CEO fronting up an ambitious project on the Arabian peninsula. And as Rangers’ hunt for a new CEO drags on, it looks lik…