I gave forced bussing as an example below. We continually implemented significant policies (that are hard to undo) without sufficient concern as to the long-term unintended consequences.
We need periodic adjustments because of things like the advancement of technology makes it necessary. These adjustments might be in the form of laws, regulation, taxes, etc. Changes to the tax code would also qualify as periodic adjustments. Focusing on eliminating certain types of fraud or misuse of funds could be another example.
What are not examples are things like the Green New Deal or reparations. Also, anything that grants more long-term power and control to the Federal government.