If you have been in business any length of time, chances are you've "bonked"—a phenomenon that happens to marathoners around mile 20 that's otherwise known as "hitting the wall."

Succeeding in business is much like a marathon: The start is exciting, with the thrill of anticipation swelling as you toe the starting line. You know where you want to go, and you're committed to getting there. The end is equally exciting. Actually seeing the finishing line in the distance brings on a surge of adrenalin. It's much easier to finish the race when you've got the end in sight.  But between the excitement of the start and the rush of the finish is the toughest part of all: the middle miles.

"Those requisite, unavoidable middle miles can be a desolate wasteland or they can be the most productive miles of the race—it's how you deal with them that determines if and when you cross the finish line, and in what kind of shape…winning in business is no different," notes business and executive success authority Dan Steenerson, a field expert whose "Science of Visioneering" methodologies help entrepreneurs, executives, and other professionals become field leaders.