Isn't using the clubs' names without their permission, in violation of copyright laws?
Even if it's not...Isn't using their logos without permission a violation of copyright laws? If I'm not mistaken, one of the better football manager's devs, still can't afford to pay for all the proper logos, crests, etc., just 'cause they happen to be, clubs' brands, i.e. a copyright-ed property.
That said, only because I'm guessing you'd want to include clubs' merchandise, such as shirts, scarves, flags, etc., with the crests and proper markings on them, as mod items' textures.
I know this isn't intended as something that'd bring proffit, but still...Just a thought.
Feel free to flame me or correct me if I'm wrong.