Change is scary. Whenever we implement change, there is always some "What if this/that goes wrong?" questions that make us nervous. The bigger the change the scarier it can be. Maybe starting small is the best way to help people get over their fears associated with change.
Find your goal, whatever it is you want to change, and break it down into a series of small steps. Initially, start with micro-changes (1% change). After trying some of these small changes, they can start to get bigger and bolder as confidence grows.
I've been thinking of encouraging the teachers in my department to incorporate regular design challenges in their classes. I was doing one or two a month, but next semester intend to jump up to three or four, and making them more involved. I have had a lot of success with them, and have found them to encourage my students to think in different ways.
In order to bring them to my department, my intention is to start them small. Rather than something elaborate, I intend to encourage them to try taking ten minutes to have a class discussion on a design related question. The class discussions are something that happens all the time, I would just help them find some rich questions.
I would also like to try doing a challenge with them during a department meeting. Something small and engaging to spark their interest. Getting them comfortable with the idea, perhaps create some challenges with each of the teachers to try in our meetings. There would be nothing at stake in front the students and no fear of missing curriculum.
From there we could build into trying a challenge in one of their classes, maybe join their class with mine so they don't feel alone. I hope the more time they spend around it, trying it out, the more interested they will become. And then, they can continue doing more until eventually design challenges become regular fixtures in their classes.
I really like working through this with the design challenge, because I find them to be so fun. The more I've looked into them and came up with ideas for challenges, the more I have found them to be something that can eventually be a whole course. With the right challenges, you can cover every topic in a course in an innovative way. Not to mention how they encourage the students to be innovative.
But it doesn't have to be design challenges. This process can work for anything. Build it up in a department or small team, and then start recruiting others to join in. Take newcomers through the small steps and help them reach the bigger ones. The more that people try the more comfortable they will become trying. This will lead them to be willing to take their own risks and be innovative.