Monday night may have been when Guglielmo Vicario entered the mainstream but, for Tottenham Hotspur and their head coach Ange Postecoglou, his talents have been known for some time. Last season, the club’s then-managing director of football Fabio Paratici made inquiries about Vicario and, even after his departure, the Italian goalkeeper remained very much on Spurs’ radar — and Postecoglou’s. …