If you are are asked to present to the executives a brief summary of agile and why they should consider it, here is an outline that I use. This presentation attempts to minimize the specifics of any particular method but rather to attempts to bring out the characteristics of agile in general.

Don't spend more than 2 minutes on any slide. There can be much more material, talking points and discussion under each of these slides, but with 10 minutes - just get to the point. You're goal is to educate and gain buy-in to the relevance to the organization. If you have some feedback or alternative ways of presenting agile in a 10 minute presentation to executives, I would love to hear about it.

Highlight the evolution... 

Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan

• Corporate buy-in and aligned values & objectives
• Resources & Roles (new or changes depending on current organization)
• Education & Training
• Transition & Ramp up time