Always did a decent job when called upon - but he did have that one-error-in-a-game tendency. Confdent - thought he was good enough to get in the teaam - nothing wrong with that, but saw the writing on the wall when we paid £20M for another CB (didn't we get Balogun, like Hunnemeier before him...
They haven't experienced his usual one catastrophic lapse per game up there yet - still, at that level he'll probably get away with it more often than not.
Besides which, even if the standard is no better, it's a much bigger deal playing for Rangers than, say, Doncaster, Gillingham or Lincoln.