Lebron being here wouldn't change leadership. There can and should be more than one leader in a lockerroom. Kobe will always be a leader on this team. He put in the years and blood for this franchise, lebron is only going to add to that. I see Lebron challenging Kobe in a more healthy way compared to Dwight. Dwight is a dumbass.
Just like people thought the Heat would still be Wade's team. It's not anymore.
Kobe will be a leader in a lot of sense of the word but he certainly would not be THE leader. You're being delusional.