Here are a few diagrams of training exercises used with Chelsea F.C. 1st Team as well as Academy teams for player development. Mourinho would typically use mannequins for all these functional passing exercises. The Training Triangles make these exercises accessible and effective for all coaches by occupying the same space as a mannequin, while solving the portability, cost, and storage problems of using full sized mannequins:
Notice the symbol Chelsea uses to depict a mannequin?