Simple truth I've learned from the best leaders I've worked with as an executive coach, professional speaker and leadership consultant: the only way to truly get power is to give it away. The more you rely/trust and believe in your team and the bigger the investment you make in getting them to their greatness, the larger will be the commitment, engagement and outright devotion they have when it comes to you.
Power doesn't come from forcing people to listen to you and coercing them to do what you say (because you have the right title). Nope, real power comes by spreading your passion, giving people a reason to climb your strategic mountaintops and given them permission to shine/grow and Lead Without Title. Be there for people and they'll be there for you. Simple stuff but I'm a simple guy.
I'll leave you with a great line from Richard Kovacevich, CEO of Wells Fargo (I had to read it a few times to get it): "it's the best five players that win the game, not the five best players." Perfect.