Can't imagine any scenario where I would put Harmon with Lattin. Lattin seemed to be most of the time the antithesis of a leader.
A leader doesn't have to be the one who is most vocal. It can also be the one that works the hardest, is the best example, and leaves it all on the court. Sometimes it can be or needs to be both.
Look back at the 02 Final Four team. Everyone wants to think Hollis was the leader, but Quannas was much of a leader as anyone. Also, Selvy added the vocal leadership needed. Same could be said of the 16 team. 4 of the 5 starters had the work ethic and example, while Buddy and Spangler were the vocal leaders.
With that said, this team has struggled with leadership and accountablity. Brady works and plays hard, but gets to caught up in himself to be a true leader. I also think Harmon could be that guy, but he has battled his own issues with confidence and frustrated with his role. He seems to be better now. Once he gets that worked out, and he buys into his role on the team, I think he is that guy.
We need someone to step up but this has been a common theme, IMO, since 2016