Management flexibility has become a relevant issue as the market uncertainty increases. Any plan should address this problem in a dynamic market, within limited budgets. Therefore the authors intend to evaluate the extent of a business plan to adapt to changes. The main goal of a business plan is to guide the market profitability and manage additional investments. They will focus on market changes and their impact on the allowed marketing budget. The model is predictive, as it provides insights on the evolution of the business, valuing the potential of a plan to endure a set of likely evolutionary changes.