Investing in the same tqm initiative round after round will create "diminishing returns".
In economics, diminishing returns is the lessening in the marginal (incremental) yield of a generation procedure as the measure of a solitary factor of creation is incrementally expanded, while the measures of every single other factor of generation remain steady.
The law of diminishing returns expresses that in every beneficial procedure, including a greater amount of one factor of creation, while holding all others steady ("ceteris paribus"), will eventually yield bring down incremental per-unit returns. The law of diminishing returns does not suggest that including all the more a factor will diminish the aggregate generation, a condition known as negative returns, however in actuality this is normal.