In my opinion one of the most important things to make innovation a succes within your whole school is to use the cloud.
When I started working at my school (I am a high school teacher) all exercises and lessons were not shared in a cloud. This made me search for ages to find all the stuff I needed (and I had create a lot myself because a lot was lost). I suggested to use a cloud system like dropbox to make sure all my colleagues who are teaching the same subject all had acces to the same exercises and lessons. This created the ability to give feedback on what your colleague made and just it so that your colleague is able to use your suggestions right away in his lessons.
So for you all who don't use the cloud I suggest to do so while it is way more easy to develop you curriculum together.