Change of plans means a sudden change in plans or some kind of modification, prompted by circumstances. Change of plans requires you to adapt to the change quickly so as to minimize time wastage and maintain the efficiency and execution of our plans to perfection. In the words of Harry S. Truman, “You can always amend a big plan, but you can never expand a little one. I don't believe in little plans. I believe in plans big enough to meet a situation which we can't possibly foresee now.” Planning is an integral part of accomplishing any task and should be done quite meticulously. A sudden alteration of a plan can be extremely critical. If the planning stage goes wrong, the implementation of the plan will never be successful. One should make plans which are robust, reliable and flexible enough so as to adapt quickly to nay change. Only those people who can make robust and flexible plans succeed in realizing and accomplishing those plans.