The legendary Manchester United manager Sir Alex Ferguson was famously reticent towards doing business in the January transfer window. And while the Red Devils have since proved that there is value to be found in the market after all – Bruno Fernandes arriving in the winter of 2020 and blossoming into the club’s most inspired acquisition post-Fergie – another side who did business with the Premier League giants four months ago may find themselves agreeing with the fabled Glaswegian. Eintracht Frankfurt added four first-team players to their squad in January 2024. And none, albeit for different…