We can get things started immediately and reward improvements. Managers have the technical expertise, job knowledge and skills. Managers understand what's good about our culture and its shortcomings. Managers get real involvement in the design, planning and implementation. Managers can answer complex questions and details of implementation.
Managers can tell stories and give real examples and successes from within.
Drawings are simple, useful and effective ways to create lasting impact. They stimulate and engage participants. They are memorable and produce individual involvement and understanding. And they link to how adults learn. Learning is more effective when actively engaged and participating.