This is the first in the list of agile limitations:

1. A team of stars
2. Fit with organizational culture
3. Small team
4. Collocated team
5. Where's my methodology?
6. Team ownership vs. individual accountability

Agile has been designed by experienced, smart, and high-achieving people. A friend wisely pointed out to me recently that they naturally designed agile for people just like them: stars. Not everybody's a Martin Fowler, a Ron Jeffries, or a Jeff Sutherland. You could have given them any project, with waterfall method or even no method at all, and they would probably have succeeded. Indeed, not every group can be motivated, experienced, and skilled enough to self-organize into an efficient team, come up with lightweight processes, and collaborate seamlessly to achieve that great agile teamwork.

Take average individuals in you workplace and imagine what would be the outcome if you trusted them to self-organize and to choose the best way (at micro-level) to reach the desired result, without any close supervision. You might be quite disappointed. I'm not saying that individuals are not qualified, I simply emphasize that it takes more than the average Joe to achieve agility.

Does your team have the agile potential?
Do you have the agile potential?
Do you have the raw individuals to form an agile team in your organization?
Be honest.

If you answered "no" to some of these questions, it doesn't mean that you cannot become agile. It means that there might be some intermediate steps to take before getting there. In my opinion, these steps typically involve adapting the work culture by progressively empowering teams and individuals, training, and hiring the right people.