I am indebted to Alfie for much of what I write here. First, they don't work There are no credible data to show that any long-term benefit results from such programs. There are data, however, that show that they do harm. They often set up a form of internal competition in which people strive to look good and look better than their fellow employees. Sometimes looking good becomes more important than doing well.
People pass problems on to others elsewhere and later in the system.
Don't let the problem appear to happen on my watch. People will circumvent the system for personal gain, causing havoc to the system. People will strive to look good even when it may hurt the customers. The customers paid dearly so that the repair shops could look good. They will act as though they are not part of the same organization, working for common goals, serving the customers together.