Tottenham Hotspur look set for a busy summer ahead as they continue to build a side in Ange Postecoglou’s image. Their latest defeat at Newcastle United shows there is plenty of work to be done, despite undeniable progress under the Aussie boss. Ange Postecoglou took over a side which had failed to qualify for Europe for the first time since 2009 last term. With Spurs still in the mix for a top-four finish, it has to be said that Postecoglou has enjoyed a promising debut campaign so far. But the former Celtic man is a long way off building a side that suits his system and we’re likely to see p…