He compared the discretion given to commanders in the American West vs. Civil War battlefields. The more realtime the communications, the more that higher commands interjected in lower level decisions.
With advances in telecommunications, we shift decision-making up the chain of command, leaving subordinates to manage inspections and admin-weenieness.
*I can't find a transcript to verify, and as much as I'd like to re-listen to the 6 hour episode, I just can't at the moment.
It also could have a Harvard Business Review episode, after reading this: http://www.leadingageoregon.org/assets/docs/Other-resources/...