He basically joins the midfield from the left back position so we always have a double pivot. You constantly see him and Dinho moving together and passing to each other. Our system ends up looking like a 2-2-4-2 when teams are pinned back, with Walker and Sane high and wide with Sterling joining Jesus/Aguero centrally. Pep has mentioned needing to buy 2 more players and almost everyone agrees they are probably a DM and a forward. But if we consider the 2-2-4-2 shape above, it makes more sense to me (atleast financially) to just have Delph be the heir to Dinho, buy another LB (or bring in Angelino) and let Mendy and the new LB out wide on the left (like Walker does often). This free's up Sane to play more centrally, not requiring us to buy another forward as well.