Answer:
Dialectical inquiry
Step-by-step explanation:
Dialectical inquiry is an old problem solving technique used in qualitative researches. The concept comes from ancient Greece (Plato developed the technique) and requires that the research group is divided into two sides. One side will advocate in favor of a concept or idea, while the other must do the opposite. Each side has to highlight why their position is correct, and after a hopefully constructive debate, one side should be able to provide the best alternatives to solving the problem considering the observations and concepts of the other group.
In this case, both groups were assigned to provide possible solutions to one single problem using different approaches, and then management will decide which approach is the best or if a combined approach is better.