Board Thread:Naruto Discussions/@comment-24826628-20140509222206/@comment-10205398-20140510001716

Kakashi was a Jonin before he even obtained Obito's Sharingan. He'll still be an extremely powerful Shinobi without it, just not as powerful as he once was. Also, Hiruzen was supposedly the strongest Hokage Konoha had ever had in his prime.