Eddie Howe adores motivational slogans and the Newcastle manager’s current favourite is: “One Brain.” The idea is to inspire his team to play with the sort of synchronicity that stems from a collective mindset and unity of purpose. For a while here it seemed to be working a treat with Newcastle’s intelligence – joint and individual – threatening to further humiliate Qarabag . But then, with a last-16 tie against either Barcelona or Chelsea assured, home concentration began, understandably,