You must ask, "What do we mean by great results?" Your goals don't have to be quantifiable, but they do have to be describable. Some leaders try to insist, "The only acceptable goals are measurable," but that's actually an undisciplined statement. Lots of goals—beauty, quality, life change, love—are worthy but not quantifiable. But you do have to be able to tell if you're making progress.
Source: The Good to Great Pastor: An Interview with Jim Collins: http://www.christianitytoday.com/le/2006/002/7.48.html
Contributed by: ~C4Chaos