Iaquinat play his best football when he is deployed wide (remmber the Roma game?)... WTF do you mean by his natural position? Buffon started his career as a midfielder, should we play him there because that's his natural position? Zambrotta's natural position was RM while he played his best football as LB.
Sali is more effective as winger

if you are lucky to find me a member with no lucky in his nickname who agree with you on this I might argue with you, for now I will just say it's not true.