The team works from two kinds of evidence, and they answer different questions. Behavior data shows what visitors did. Interviews and sales conversations help the team investigate the reasons. A high exit rate on a page tells you people are leaving it. A question about pricing that sales hears again and again is a lead, and the next step is to check it against what the pricing page says.
A controlled test compares two versions directly. HubSpot's page A/B test, which is part of Content Hub Professional and Enterprise, shows one version of a page to half the visitors and a second version to the rest. HubSpot recommends testing one variable at a time. That suits a headline or a call to action. Some changes don't need a test. Repairing a form that fails on phones is an improvement whether or not anyone tests it.
A test also runs on its own clock. A sprint is a work schedule. How long a test needs depends on the page's traffic, how often visitors convert and how large a difference the team is looking for, among other things. So a test started in one sprint can still be running when the next one begins.
Lean Labs' growth-driven design program shows how these pieces fit together in a published service. It works in 30-day sprints on HubSpot. It looks for friction in four places: page performance, form behavior, CRM lifecycle stages and sales feedback. Then it ranks the opportunities by their expected effect on pipeline, their relevance to the buyer, the team's confidence and the effort required. The page includes an illustrative sprint board. It lists a pricing page change as shipped, a homepage test as still running, a form fix as in progress and a comparison page as planned. The example makes a useful point about the stage, which is that work in a sprint sits at several steps of the cycle at once.
Sales feedback gets its own routine. Lean Labs' post on the three stages recommends a brief weekly or biweekly meeting where sales shares the questions and objections it's hearing. Those go on the same backlog as everything else and get scored the same way. This is the transfer step running in both directions, since the web team passes its findings to sales and sales passes its calls back.