Newcastle United need to increase their revenue, as that will mean they can spend more money on new players. That is the Magpies’ issue right now, with the Premier League’s profit and sustainability rules stopping Eddie Howe from strengthening his squad in the January transfer window. A short-term solution is to sell players, with the likes of Kieran Trippier and Miguel Almiron currently being linked with moves away from St James’ Park. If they were to leave, Newcastle would suddenly have the capacity to spend. But that creates a difficult situation, as Howe does not want to lose any of his ke…