Both stages- Perception and Processing are needed to solve problems but
they are very different.
In the Preception stage one is getting to gips with real problem, getting
of artivicial boundaries, trying to decide on the method of attack. Here are
uses Lateral Thinking.
In the Processing Stage, one completes the solution and uses Vertical
Thinking. Some people are lateral thinkers, some are Vertical Thinkers. Team
solving needs both types.