In many, many cases - teams don't have enough time to do maintenance. The programs where our developers become line order cooks, only having cycles to add the

In many, many cases - teams don't have enough time to do maintenance. The programs where our developers become line order cooks, only having cycles to add the features for that sprint, almost always spiral into despair. Dependencies will go unpatched, tests become untrustworthy, and the code review cycles from those who should catch things goes away. Business gets what they wanted and then starts to shrink the pool of developers to save even more money - either with fewer resources or less experienced. You really have to force teams to give time to polish things, because I don't think business understand they need to change the oil on the car.