So let's see how the summer plays out. If Costa goes, Chelsea will have to buy a striker... If Ibrahimovic goes, Utd will have to buy a striker... If Kane leaves Spurs, they will have to buy a striker. If any of these situations unfold the club concerned will have to buy a striker to keep their fans onside... the prem's top scorer would be a prize acquisition in those circumstances, and the club concerned will pay through the nose.
If no-one needs him, then we keep him. Double his wages with a contract extension that includes a £80m release clause. He won't turn down a pay rise that big at the end of the summer, when no-one has moved for him at £100m. Sorry but Moshiri and Koeman are handling this very, very well.