This 4 step change model explains why change is hard. It explains why some change efforts succeed while many fail. If you want to know why people stop going to the gym by February after starting on January 2nd it tells you why. If you want to know why you stopped writing that novel after starting it with so much energy it explains. Look at stage 2 as the reason why change is hard. Many change efforts also fail in stage 3. The key to making change is to go through stage 2. The model helps you conceptualize your change management projects in a new light and shows you what’s being driving change in 4 steps.
You can also read the detailed writeup on this model in my blog post the single biggest mistake that dooms all change management projects and hope to avoid it?