A difficult type of change in organizations involves people. In general, it can take many lifetimes for ideas to change, since people tend to retain ideas far past the time when those ideas have been replaced by newer ideas. This is a central idea in Kuhn's book "
The Structure of Scientific Revolutions".
It is well documented and established (e.g. Kuhn's book "
The Structure of Scientific Revolutions") that new ideas take a long while to be adopted, for everyone but even more so for scientists, when one has held a previous idea.