Creativity is under threat. It happens whenever and wherever there's a squeeze on the ingredients of creativity, and it's happening in many businesses today. According to the Labor Department's most recent stats, productivity is up. But stretching fewer employees to cover ever more work in our job-starved recovery is no way to run the future. Without the creativity that produces new and valuable ideas, innovation — the successful implementation of new ideas — withers and dies. Creativity depends on the right people working in the right environment. Too often these days, the people come ill-equipped, and their work environments stink. A recent story about the 40th anniversary of Xerox PARC stirred my memories of how the creativity ingredients overflowed at that place,