EVERY employee has two jobs??...
Toyota, the company who have been progressing improvement since the days they made textile looms, take a very progressive and long-term view on kaizen (change good) and employee engagement.
(I don't think they called it Lean, the word doesn't exist in the index of the Toyota Production System book by Taiichi Ohno, published in 1978)
They say EVERY employee has two jobs:
First, to do their work and, second, to improve their work.
Thanks to Mark Graban for that insight.