First and foremost, Guidetti should not be the head coach of Vakifbank and the national team at the same time. It creates conflict. Unlike Mazzanti, Vakifbank is such a big club. Mazzanti is coaching Perugia, a low-mid level team in Italy. He is not bringing Perugia players to the national team except maybe Guerra who has been a member of the national team for years.
Who is going to establish which teams you can coach?! It doesn't make sense to me.