2. A two-headed team to maximize return on investment

A Scrum team is a two-headed entity. On the one hand, there are one or more "functionals" representing the customer, defining requirements, specifying and validating what is expected, and on the other hand, there is the "technical" team that actually carries out the work. The logic of these two groups is as follows:

• the "customer" group's one and only concern is to maximize the product's value, to produce what is expected by customers and the market. To achieve this, they choose the features to be developed and, above all, the order in which they should be developed;

• the "technical" group is concerned with minimizing product costs. Based on functional requirements, the technical team must find the least costly solutions to meet the need, or propose alternative solutions close to the requested solution....