David Allen vs Tom Peters

It seems David Allen

Even as late as the 1980s many professionals considered having a pocket Day-Timer the essence of being organized, and many people today think of their calendar as the central tool for being in control.
...
What you've probably discovered, at least at some level, is that a calendar, though important, can really effectively manage only a small portion of what you need to organize.
...
The real issue is how we manage actions.
[from Getting Things Done]

fundamentally disagrees with Tom Peters

You = Your calendar.
THIS IS MY #1 BELIEF ABOUT MANAGEMENT

(also: am I the only one to think they actually kind of look alike?)