For Liverpool, their midfield need is not as great as it would seem at first - after all, they have Can and Henderson - which is a pretty solid and reasonable midfield really. What they need are full backs and a striker that their manager is willing to play, so they can actually play their best players in their natural positions. Lallana is a good wide man, Ibe looks good too, Coutinho behind a decent lead striker, ahead of the two mentioned above, with two decent actual dedicated fullbacks should be a decent shout. They wouldn't even need to be brilliant, just solid. The centre backs are ok, they just need protection from their flanks and the centre of midfield, like any other centre back pair.