While Manchester United moved fast to secure the services of Sporting boss Ruben Amorim, this had been a decision months in the making. If you used both hands to keep track on the sheer number of managers Manchester United considered before opting to replace Erik ten Hag with the 39-year-old Iberian, you would still find yourself a few fingers short. According to reports, Man United talked to Roberto de Zerbi, Thomas Tuchel, Thomas Frank and Roberto Martinez over the summer, either side of that FA Cup final triumph in May. Xavi, Thiago Motta, Simone Inzaghi, Gareth Southgate and Graham Potter,…