One of the key skills you'll need to bring change to the world will really test your creativity, as well as your sanity, your patience, and your resolve. It has to do with how to take your dream and make it as real as possible. It doesn't really matter what your dream is, "going big" means doing it to the utmost. To do that, you need one thing: other dreamers to share your dream. If you learn to make your dream a team effort, you'll find the key to growing big.

One of the biggest lessons when it comes to working with friends and family is to have the confidence to fire your mother-in-law if need be. The way to keep issues with loved ones out of the boardroom is to create what I call a start-up prenup, a document that puts the rights and responsibilities of each partner on paper. It's OK to start a business with those you love, but make sure you have a plan if the love goes away. But too often I've seen the dreadful alternative. My advice is formalize your partnership agreement.

Agile leaders encourage their teams to adjust and experiment constantly. In today's age of oversharing, the best leaders also have to be more open and accessible. To be effective, you also have to be aware of how others perceive you and cop to your flaws every now and then. One of the lesson to successful leadership may be quite challenging but very important. Expose yourself. Allow yourself to be vulnerable - less super and more human. These "Leadership 3.0" practices, as I call them, are critical to being an effective manager when you're getting started in today's world.

Stalking is an underrated startup strategy.

Endeavor's partnership with Bain took off at just the right moment. We were embarking on our '3.0' organizational strategy, and thanks to the compelling analysis, entrepreneurial zeal and tireless commitment of our Bain team, we've emerged with a world-class plan. We look forward to continuing our high-impact work with Bain!

Products, profits, and paychecks are not enough anymore. These days, society cares how you treat your own workers. Customers want to know you promote the same values inside your walls as you do outside; job hunters want to know you care about them before they send in an application. Your culture is your brand. You need to create an organization where your employees believe in what you do.

If you're not called crazy when you launch something new, it means you're not thinking BIG enough.