A better approach is to re-read the requirements and sketch out what THAT customer needs. If having done this, you find there are sections that have also appeared in older documents, you can then consider cutting and pasting text. If you start with someone else’s proposal, you should not be surprised when a customer complains about it being too generic, or containing irrelevant material.[jetpack-related-posts]
Starting a New Proposal
When faced with a blank piece of paper and a proposal to write, most people begin by reaching for the last one which appears similar.