When it comes to being an effective leader, communication is key. Sallie Krawcheck, one of Forbes World's 100 Most Powerful Women, and current head of Bank of America's Global Wealth and Investment Management team, says there's no such thing as explaining something too many times:

"Leadership is about constant communication. I’m often surprised when I feel like there’s subjects we’ve talked about till we’re blue in the face and then there’s still someone who goes, ‘wait—how do we feel about that?' So you take it again from the top."

Keeping your message direct and focused is important too. "Pick a course of action, bring it down to its bare elements, and charge!" Krawcheck advises.

Watch Sallie Krawcheck discuss leadership and communication below: