Nedum Onuoha has highlighted one behind-the-scenes factor as to why Manchester City have been so successful on the pitch in recent years. Throughout Pep Guardiola’s reign in charge of the Manchester club, City have been a dominant force in English football in terms of the trophies they’ve won. Their previous season saw them complete a historical Treble by winning their fifth Premier League title in six years, as well as the FA Cup and their first Champions League. With the Blues on the hunt to add even more silverware to their cabinet this time around, one pundit and former City player has pic…