We must change and evolve quickly in this new age of doing business. Competition has changed. Niche Markets and Emerging Market business, goes to those who adapt to it daily.
The new "Continuous Improvement" rule: "Teach everyone what it means for them to do a good job in teams for the full scope of their work together, and help them do it better today than yesterday, and get out of the way."
Today's Managers and Supervisors must change leadership style to correct problems born out of yesterdays practices...or deal with them like always, ever day...continually. Focus on building strong independent teams, skilled and trained to function autonomously. Give them tools, resources and advanced skills providing all means of support, breeding more of the same. Do this and employees will start moving faster, being creatively self sufficient and return surprising performances to get more work out right. If they weren't smart enough to do this in the first place, they never would have been hired.
After this, if things don't start to improve...
...then this wall
may not be such a bad idea after all.