Money, according to Brian Roach of Juniper Systems.

During the first hour of today's Best of In Depth, hear Roach discuss this -- and the technological innovations that are driving change in government IT: virtualization, cloud computing, cybersecurity, and others.

Then, learn how to be a leader with Dr. Gerry Gingrich of the National Defense University. He'll talk more about his experiences, and the "nature versus nurture" argument in hour number two of the show.