Re: ISO 9001:2008 to 9001:2015 - How important is a Quality Manual
You could do that with the 2008 version too.
The good news with the 2015 edition you can have an Intranet / document in parallel that describes how your organization operates and that helps people really understand your business. We had one at a company I worked at and called it 'The way we do things round here'.
You could do that with the 2008 version too.