French giants Paris Saint-Germain may now be poised to ruin some of Ange Postecoglou’s plans to improve his Tottenham Hotspur squad this summer. To date, Postecoglou’s side have made a commendable start to the window, stealing 18-year-old Archie Gray from the grasps of Brentford. Perhaps some Tottenham supporters would have liked the club to have achieved more by now, but in the context of the Premier League’s top sides, they’re not doing too badly. That being said, Johan Lange has only scratched the surface in terms of what Postecoglou will want to achieve this summer – who has already stated…