Many don't want to acknowledge it but if he leaves there is no way we're getting an upgrade or a player that could match his output currently..They are all at top clubs.
Pep's system helps him but the only better RWs in Europe are Messi,Mbappé and full-flow Bale and scary that Heem is nowhere near his peak.Anyone else will have to be a 'project' player and even then for a player for our level and the way the market is there's no way we'll be paying less than 60 M £ for such a player and to factor in the 'replacement's' wages,we can't afford to lose him and all parties know it.He currently holds all the cards.
Been our most consistent player this season and only Aguero has scored more than him and whilst he might not be the most aesthetically pleasing player in our squad like Sané or Bernardo are but no one other than Aguero/KDB comes close to his clutchness.