Are you sure that star players will go to Newcastle now. I think not. Star players, in addition to money, need trophies and the opportunity to declare themselves. They think about money at the end of their careers. There are a lot of things to do now before you start buying players. You need a coach, a development program for the future.
Yes you are right, Mbappe can't just go to Newcastle because they are going to pay him well,the need time before they start bringing world class players.the need to sign a proven manager in the premier League or Europe to begin the structure with,an also get good players in,that are not world-class but are very good,such as Wilfred Zaha Trippier Ndidi,Richarlison, and Mings I think this names we be very easy for them to get from their various clubs.but if I may suggest a coach for them I we say the should give Simeone the Atlitico Madrid coach the job to start the building of the team, because he is very good at building.this my opinions