I have been working and modifying this template for over a year now. I have made about forty different business models on it in a year, which has taught me a lot; and I aspire to continue learning from you, so I ask for your comments in return.
This template that you can copy and modify in Google Docs is intended for startup creation, not growth or consolidation. My only recommendation is that you start with the customer, assign a post-it color to each type of customer and then spread it across the other eight boxes.
As I said in a entry Business model generation is a must-read for entrepreneurship, and I understand undertake in a very broad sense.
Doing a canvas when you have an idea will make you see the whole business you are thinking about. I use 45 minute sessions to do a canvas; I go through it in another 15 minutes going color by color and always starting with the customer. Then I let it sit for a week and usually iterate again.