Newcastle United need to make their squad stronger rather than weaker during the January transfer window, so a new claim about Sean Longstaff is very confusing. Just over a week in and Newcastle are finding the January transfer window very difficult. The club does not have much money to spend, despite Eddie Howe’s desire to add fresh faces to a squad that has been in need of a lift. Profit and sustainability rules are stifling Newcastle’s desire to invest in new players, which is an issue that plenty of Premier League clubs are having to deal with. One solution is to sell before you buy, which…