Google Glass and other technologies are struggling to find their "job" because they have amazing technological advancements but lack a clear understanding of what problem they solve for customers. This is often referred to as being in the top left quadrant, where technology precedes the job. In contrast, companies that focus on defining the jobs-to-be-done, such as weather apps, are more likely to succeed. These products understand the simple, practical problems their users face and deliver solutions that meet those needs. On the other hand, game-changers like the iPhone launch are successful because they present new technology alongside real, useful things it can clearly do, without relying on hypothetical use cases or aspirational marketing. By focusing on what customers can do with a product, companies can ultimately improve upon their experience and achieve success.