The attention devoted in the previous paragraphs to the design of the research plan might leave the impression that once a marketing research project has been carefully designed, the job is almost done. Clearly, this is not the case. The implementation of a research plan is seldom an easy task. Often a research program requires extra effort from already-busy personnel in the company. In other cases, outsiders must be recruited, hired, and trained. In either situation, carrying out a marketing research plan is difficult and requires very close supervision and control. To the extent that the plan has been well conceived, supervision and control are restricted to making sure that the research activities called for in the plan are carried out according to schedule and in the manner prescribed.