Malcolm Gladwell: Jack Welch made the most important decision that any CEO can make, especially a public company. In real life, in his, when you're with him, you would be charmed by him, he says. But there's a kind of ruthlessness in him that makes me uncomfortable and I wouldn't want to meet him. Bill Griscum: Everyone who gets to the top of Wall Street is like that. It's like they can be incredibly charming when they want to be and total assholes when they have to be.