Focus and a determination to succeed. Many writers and motivators go on about the need to write down goals and promote this as being the key factor in successful goal setting. The magic is not in writing down a goal but in being able to focus on a goal and for some writing it down and displaying it prominently helps. Focus requires specifics. Well, this is fairly pointless unless you establish how much weight you need to lose.
Goal setting is personal.
Too often, you see people make a grand public declaration of their goals whether it be losing weight, stopping smoking or in business, a company goal of some kind. As I said, displaying a goal publicly can help with focus but often the wall is where the goal remains. Translating a goal into action, particularly when it is a company goal, needs planning. You need to understand that there is a big picture, the ultimate aim or goal and a small picture, the steps you need to take to achieve that goal. Working out the small steps you need to take is the key.