Agile Marketing As I wrote about last week, Return Path has been using the Agile Development methodology and Rally Software as our product development framework for about a year now. It’s worked so well for us, that the concepts, and even the tools, have started to spread virally to other parts of our business. About two months ago, I took over our marketing department as interim CMO. Our marketing efforts have become increasingly complex in the last year or so as we’ve grown and added multiple new product lines, and as a result, the demands on our relatively small department were becoming unmanageable. As I wrote about a couple years ago, Marketing is like French Fries — you can always…