I think Denayer would suit that role perfectly so I can't imagine a top level signing being brought in to hinder his progress. Perhaps Kompany is an option there with Stones (or similar) sitting next to Otamendi?
I think wing backs are the main area where our squad either don't have much experience (only seem suited to full back) or are shit (Kolarov). Angelino could be an option but I can't think of many top class RWBs that might be on the market (Rodriguez on the other side?).
Would love to see Pogba and a top class winger/forward as an alternative to Sterling and KDB.
Yesterday Jason was playing RB against Lazio and put on an excellent performance. Fans are starting to call him "beast". He was scaring players off the ball with his presence. We have to make him feel right at home when he gets back. Believe he was MOTM,I agree that he would suit the role but its hard to tell how he will adapt to the Premier League so I just can't see Pep taking that risk with an unproved young player in a pivotal position.
I completely forgot to add Sane as an alternative to Sterling. Im not convinced on Ricardo Rodriguez, i think he is a product of hype, just as bad as Kolarov defensively.