teams require people whose role it is to comment此句it是否为多余?

teams require people whose role it is to comment此句it是否为多余?
teams require people whose role it is to comment
此句it是否为多余?

teams require people whose role it is to comment此句it是否为多余?
是多余的,因为这句话是定语从句,Whose已经代替了people.意思是people's role is to comment,而it在这里是没有意义的,多余的.

显然多余，定语从句的主语已经有了，即role，不需要再用it指代。

是
ROLE已取代了IT的位置