There are many great problem solving processes. There are many great approaches to leadership. Styles change, tools grow, people evolve. One single answer seldom does the trick.
That unsolved problem just might need a combination of solutions.
Dig them up. Look them over. Try them again. Put them together like the pieces of an elaborate puzzle or the moves in an intricate game. There is an answer there. You just might have to fuse a few together.
-- Doug Smith
Front Range Leadership: Training Supervisors for Success
doug smith training: how to achieve your goals