I had the pleasure of attending one of Nick's classes several years ago. I was quite young and impressionable at the time and much of what he said has stayed with me since and I've found it all very valuable.
Much of what we discuss with productivity is technology. If we're good we talk about process and the business logic behind it.
Nick works almost exclusively in the people aspect which is arguably the most important of all.
Take a holistic approach to productivity, and take some time to listen to an expert... http://nicholasbate.typepad.com/
Oh, and Nick... those damn "pegs" are still with me!
Nicholas Bate: Productivity 1