If you have the common problem with buying players like Aghahowa, Tsigalko and Ororonkwo etc then you can take control of their national team and start playing them to build up their appearances internationally which helps.
However I just add a second nationality that is a european country using the editor database meaning no work permit is required and they retain their original nationality. You could say it's cheating but with the EU nowadays it's just bringing the system up to date imo. Why should you not be able to easily combine the best league in the world with the best players?! GL
Added by: The Goose. May 20th 2012, ID#17134