Use the eye test, Dak is not a natural leader it's as plain as day. He's gone through the "leadership school" and that's what you see on the field and in practice. Not natural leadership.
A true leader, has the innate leadership qualities, combined with leading by example, unbelievable determination, killer instinct, a little inspiring fear, and a pinch of isolation/mysterious mixed in.
Troy was the ultimate leader. You never wanted to let him down. Tom was your ultimate leader. These were battle field generals.
Dak is your "buddy" type of leader. Jerry is a salesman, he's basically the colonel Tom Parker in the new Elvis movie.