Management team. It is extremely important in any organization to make appropriate assignments of responsibility for the implementation of the marketing plan. In some cases the availability of a certain expertise may be uncontrollable (e.g., a shortage of certain types of technical managers). In any event, the entrepreneur must build any an effective management team and assign the responsibilities to implement the marketing plan.
Suppliers. The suppliers used generally based on a number of factors such as price, delivery time, quality, and management assistance. In some cases, where raw materials are scarce or there are only a few suppliers of particular raw material or part, the entrepreneur has little control over the decision. Since the price of supplies, delivery time, and so on, are likely to impact many marketing decisions, it is important to incorporate these factors into the marketing plan