I have said nothing about CPJ in this thread, or any today. I don't know why you think that's even tied to talking about team leaders.
Leaders lead. Its been obvious in the seasons we've had them, they improve their entire unit just by their demeanor but also by their actions. They set an example, they set the tone. They fight like hell and overcome adversity. They inspire those around them. Leaders can pick themselves up and those around them.
I think AJ Gray would have been that guy on defense had his career not ended. On offense, the closest I've seen all season is Tobias Oliver when he's been in. Taquon doesn't lead, he doesn't pull the offense together, he's too much in his own head to consider that he's SUPPOSED to be the leader and that his actions and demeanor affect the whole offense.