Tottenham Hotspur still have a number of positions which need addressing in this summer’s transfer window. Wednesday night saw Ange Postecoglou‘s side put on a show against Hearts in their pre-season opener away to Hearts. Spurs won in style at Tynecastle in a display which will have fans excited for things to come in the upcoming campaign. However, it will not have papered over the cracks in Postecoglou’s squad with only one permanent signing brought through the doors so far this summer. That could soon change, though, as Tottenham find themselves now leading the race to sign a £50m striker o…