Dont worry it is easy.
Go to EDIT mode on the main menu and when you enter you will see an option for Stadium edit, which is for stadium names. Edit players and you can edit the names of the players. Just find the player from the club click on them and you see it says it there in the options available on the player. Transfers are a little more complicated but not too difficult once you know what your doing. Someone else will assist you on the transfers.