When you create a to-do list, you usually put the most important tasks first. Why should starting on your Product Backlog be any different? Tommy Norman claims that you need to do away with working on Product Backlogs in sequential order, because it just doesn’t make any sense. The most important outcome of any project is pleasing the customer. Where in the Product Backlog is the main feature that your customer is paying for? Find it, and make it your top priority.
This might be easier said than done. However, even if your main feature can only be done in rough outline form, it is still smarter to work on it early. Give your customer something to look at and comment on. If there is any miscommunication on the expected product, it is better to know this upfront, before you spend time on little details. Weed through the logical 1, 2, 3 of your Product Backlog and start making time for your customer. Your ROI will increase, and your logic will be transformed.