Tottenham Hotspur are expected to be very active in the summer transfer window, and Ange Postecoglou already has a few targets lined up. Spurs have had a decent season so far. The North Londoners are currently fifth in the table and have a big chance of qualifying for the Champions League next season. That would be a fantastic achievement for Postecoglou in his first season in charge, but the Australian will want a lot more in his second campaign. To achieve that, Tottenham will have to strengthen multiple areas of their squad. Postecoglou has already admitted he wants to sign a new defender. …