You can tweet Rob at @robbro7 or simply listen out for the loudest man on a five-a-side pitch in the greater Cambridge area.

Chris goes by @TheThumbCompass. You can also contact him by looking for a man playing Football Manager while wearing a suit.

Charlie is a suspicious recluse who can only be contacted by leaving an enticing trail of Ryvita pieces around north London (butter on the flat side, please). Also you can tweet him @CAndersonFtbl.