Sharingan no Rin

What if instead of Rin getting killed, Kakashi is the who gets killed instead. Everything in this AU will stay the same, with Rin also having the Sanbi sealed in her. The only difference is that Obito, who witnessed Kakashi's death instead of Rin's, still went insane and goes along with Madara's plan. Rin will be the Sharingan User instead of Kakashi and will also be the sensei of Team 7. How will Rin's relationship with Team 7 be like? Will she be the greatest sensei to them or will she end up failing them. How will she deal with the Sanbi that had been sealed into her. And how will she react once she sees that Obito had survived.