Too Long; Didn't Read
The more work in flow, the more context switching we all need to make. Coordination of the stories complicates testing and migrations. The more complex the tasks, the greater the cost of these switches can be significant. For every additional item you work on, you extend the duration of each item by 20%. You effectively lost an entire day by attempting to work on 2 items in order to get things done “faster”. You can use a simple formula that can be used as a simple calculation for an investment.