Nonsense.. Sterling is similar to Coman in so many ways and he plays at AM for Liverpool in a 4312 last season. But sure Coman will find the space on the left and make good use of his pacy feet.
Tevez has insane workrate - if deployed deeper at AM he would track back and help the midfield serve Llorente, Morata or whoever plays up front. Ideally Tevez should be played as a striker but his workrate is better then his finishing so to speak..