Jamie Dimon shared the one characteristic he says sinks CEOs

Jamie Dimon, who has run JPMorgan Chase since 2006, says the best leaders are "not embarrassed by not knowing." Bloomberg/Getty Images Jamie Dimon warned on a podcast that insecurity, not arrogance, is a leader's biggest enemy. He says he leaves every board meeting so the board can meet without him. Humility is a characteristic he looks for when promoting people. Jamie Dimon has watched executives rise and fall for decades. The trait that sinks them, he says, isn't the one you'd guess. The…