Marketing Mix: one of the key points of the marketing plan is the design of medium and long_term approach of the 4 Ps (price, place, product, promotion). Action Program: on this section all the actions to be performed are gathered with specific information, timetables and responsibilities among the personnel. Provisional Income Statement: the plan must include an income statement with any inputs for which the marketing department is responsible for.
What was the outcome? As much as 90% businesses started by entrepreneurs and small business went busted or failed within a year. I experienced one of the many busts few years ago (with my cafe business) because i don't really have a proper and "the few solid sheets" called a marketing plan.