The document discusses evaluating and controlling marketing activities. It explains that a marketing strategy may differ from what is actually implemented. There are four possible reasons for this difference: an inappropriate strategy, inappropriate implementation, mismanaged implementation process, or changes in the internal/external environment. The document outlines a framework for marketing control that includes formal controls like input, process, and output controls, as well as informal controls like employee self-control, social control, and cultural control. Successful implementation also requires scheduling specific marketing activities and determining the sequence and timing of activities.