Jurgen Klopp has done a pretty handy job of rebuilding Liverpool over the years. Obviously, the most impressive thing the manager did was taking a bang average Reds team and slowly transforming them into English, European and then World champions. However, once that super team Klopp had assembled started to drift away, the 56-year-old has also been adept at bringing through a second, top-class Liverpool squad. Last summer was the biggest test for Jurgen yet in that respect. With six first-team players leaving Anfield, the manager had a huge task to get the group back to being something like ch…