I’ve never met Mary Barra personally. But probably like you, I feel like I’ve gotten to know her well just from reading my share of all the coverage she’s getting in the local press. I’m fooling myself, of course, because all the press is really doing is giving her your basic star treatment, not capturing the whole person. She surely has her own set of professional and personal flaws, just like the rest of us. And if you don’t know a person’s flaws, you...