Leadership practice flows from ideas, understanding

Here is quote that I'd like to find again. I think it's from Leading-Forward, a leadership web log I recently found, but I can't find it there. Let me know if you know where it came from, particularly those of you that may be better versed in leadership literature.

One error we make when looking at the practices of successful leaders is we tend overestimate the importance of leadership practices and underestimate the importance of the underlying and coherent view of the world and what you find important.