I’ve known for most of my life that there are two Jeffs. They share physical characteristics and personality traits, of course, but that’s largely where the similarities end.
One Jeff is the “trusted professional,” if I can appropriate the phrase. He’s quiet, quick with a pithy comment, and has something of a reputation for getting the job done no matter how tall and order it happens to be. He can bring a surprising amount of charm to bear when he’s determined to get his way and the people around him like and respect him for it. He possesses plenty of leadership potential, but very little in the way of leadership ambition.
The other Jeff is guarded and far more stubborn than his alter ego. He’s governed by perennial trust issues, but builds fierce personal loyalties often to his eventual regret. He’s resistant to change, colored with a streaks of perfectionism, and subject to a near fanatical devotion to order and schedule. This Jeff can be charming too, but he mostly excels at drawing people close only to shove them away if they threaten to orbit too near.
Which one is “real?” Probably both. I have my doubts if the two Jeffs are severable at all – and even less confidence that either one would be successful or effective on his own.