International teams caretaker managers and shirt numbers

Hi guys please add international teams as a way to play in a different way to give more options of managers (e.g I can appoint Gareth Southgates to Manchester United) and also full first names would be nice such as rather than D. De Gea its David De Gea and if you sack your manager you can borrow one from another club untill you appoint a full time one (like we saw with Solskjær last year when he became United Boss) or allow us to make assistant manager caretaker/ new manager so staff can change roles as long as its similar to what they currently do and renaming / building completely new stadiums