Product
Marketers recognize a consumer need and then provide the service or product to fill that need. The marketer's job is to identify and understand existing needs, enlarge upon them, and identify new ones. For instance, because there are more singles and small families these days than in years past, marketers may see a need for products to be sold in smaller quantities and offered in smaller packages.
How can this impact on other professionals in business/marketing procedure? Let's say your company has developed a new product that generates huge consumer demand. Your marketing department can ask you to discover a way to speed up the workflow in order to crank out more products faster. One year after the product is introduced; although, the market may be flooded with cheap imitations. As one marketing strategy is to keep products price-competitive, a marketer can then ask you to discover a way to make the product less expensively.
This relationship works in both ways. There can be production and industrial engineers who can see a way to change the work procedure that would create additional options for consumers. Those engineers shall also be instrumental in design and development of products for which ergonomics and human factors are significant considerations. May be there is room to add another product line. For example, that product X is still blue but new product Y is red. You can recommend this to your marketing department; this, in turn, would do research to gauge potential consumer demand for new line.