Honestly they don't Dave, what they need in reality is an exceptional director of football, a zork from Dortmund for example, and also a much improved scouting network.
Klopp is good but he's also flawed, and requires a constant stream of talent coming into the club to effectively replace those that start physically breaking down due to his training and way of playing, dunno if you saw my post the other day listing 7-8 of the key players of his best Dortmund sides and their history records since 13/14 season, most had high teens in ammounts of injuries sustained, and those lower was due to having several long term serious 5-6 month injuries.
Your already seeing this season the cracks in some players appearing, noticeably Henderson, sturridge, lallana, matip, lovren and firminho, mane, coutinho will start progressively picking up more over the next season too.