Newcastle United fans are debating who should stay and who should go this summer, but it seems as though the owners have already made their mind up about one player. It is going to be a challenging summer for Newcastle United, one in which they need to move some players on whilst also fending off interest in their biggest stars. Bruno Guimaraes and Alexander Isak are attracting interest from some of the biggest clubs in Europe, but Newcastle’s plan is to keep them at St James’ Park. That is the correct call, even if the club could receive more than £200million to sell both of them. That would …