This is what we're doing. We're distinguishing project work, which requires longer and more constant focus on a problem and other, smaller stuff. For example, s

This is what we're doing. We're distinguishing project work, which requires longer and more constant focus on a problem and other, smaller stuff. For example, setting up configuration management for an entirely new application is a project. Writing and deploying an icinga check, a telegraf collector and such is smaller stuff. With this, we schedule some people to be on project duty and they shall not be interrupted. Other guys are on interrupt duty and tend to do tasks which just require an hour to half a day of attention so they can easily close something they're doing and jump on something urgent.