Much Antonio Colak’s rather nomadic, out-of-a-suitcase-and-into-the-plane-seat career has often been a tale of ‘feast or famine’. He struggled for goals in Germany with Kaiserslautern and Nurnberg but was prolific in Croatia with Rijeka. Then came a disastrous stint at PAOK, an outstanding spell with Malmo, and a season at Rangers in which an impressive tally of 18 goals was undercut by his lack of a presence outside of the penalty box, Mick Beale’s desire for a more all-round centre-forward paving the way for an early departure. But if Antonio Colak still made a hearty meal out of Scottish Pr…