Erm...don't see any future Saints manager in the Celtic team...or the Rangers team for that matter. Davie Provan was Alec Ferguson's assistant manager.
Interestingly, had Orjan a twin brother who also played for Rangers, (much as the de Boers did in the naughties), would they have chanted "We are the Perssons"?
ETA...watched it again...Alec Ferguson
Hardly a failure.