One of the better axiom's that I have encountered over the past few years is that, "I may not be right, but at least I am not confused."
Specifically, this axiom suggests that it is more important to have a well-formed perspective on the whole picture than it is to have to be specifically correct about all of the piece parts.
What are these piece parts? The 50,000 foot big picture view, or "vision" of the space that drives your macro assessment of the opportunity. The targeted "outcome" that you aspire to which represents your end-goals. The "strategy" for getting there and the specific left/right/straight "tactics" for traversing the path ahead.
This is a model that recognizes the value of speed over perfection, that understands the nature of rapidly evolving markets, which reward getting "something" out there, iterating and course-correcting in real-time, as opposed to planning in a vacuum and releasing product or strategy over longer time cycles.
It requires, though, a continual calibration and re-calibration of the definition of the situation, practicing intellectual honesty about what the data is telling you and over-communicating with your constituency (customers, partners, employees, investors) the key takeaways.
In many respects, some of my greatest joys of entrepreneurialism are in this process; namely, getting to the "right" answer, which is a by-product of working through the dissonance as it is encountered and forging towards the clear picture of "truth" as it materializes.