The only competitive advantage organisation have left in 21st century is agility.
Look at how your organisations delivering service or product and ask yourself this question: how long does it take from customer requests until the service or product is delivered to your customers?
Agility is not a software development methodology. In fact that is where most organisations got it wrong. Agility is organisation's speed of learning and speed of delivery to respond to market changes to maximize it's product or service value in the market while maintaining risks and quality at the same time. This requires whole organisation collaboration. To be agile the whole organisation need to be agile. To be agile, organisations need to tear down the barrier and focus on one thing that matter the most: constantly delivering value for customers faster.