Applications are only to be allowed through FIFA 2013 or Football Manager 2013 (no earlier versions will be allowed as an up to date knowledge of modern football is deemed essential).
This will also allow the club to substantiate any silly claims to experience, tactics, form etc: by checking their records on line, or via their saved games list.
Before applying you will also have to have obtained the bill payers consent to apply (ie: person who pays the online gaming charges/broadband bills etc) to avoid any compensation claims that may arise later.
hope this was helpful.