Final answer:
The Gumpert approach to new business plans does not include a web site.
Step-by-step explanation:
The Gumpert approach to new business plans includes various elements such as a great presentation, letters of support from customers, financials that show good cash flow, a web site, and a great story. However, the one that is NOT included in the Gumpert approach is a web site. While a web site can be an important asset for a new business, it is not mentioned as a specific component of the Gumpert approach.