When change can happen in institutions?

Dr. Irfan Hyder mentioned in comments of his recent post on his blog post "Why Project Based Learning? An Experiential Learning Case Study of Language Teaching" about change management in institutions. I believe this one paragraph is enough to understand how you can make changes at higher level. The full blog post is worthy to read and recommended for everyone; specially those in academia.

You are right no institutional change can happen unless you have a critical mass of "change agents" (technical term). As I mentioned elsewhere, these "change agents" can be found in your subordinates, peers and even superiors. These are the people who are willing to change because they can see that the change will bring for them professional prominence in this job or even in market elsewhere. These are the people to be first identified, stimulated, convinced, and encouraged. Then each of them would start posting "small-wins" (technical term) wherever they are. This brings support to your and their initiatives and slowly and gradually you build up the momentum for change. Soon one of these agents would be put in a position of responsibility because of the new ideas and initiatives that they are promoting. All organizations sooner or later desperately require such people. That, then becomes a catalytic moment.