The best way I've learned to build working software is to have a group working together driving at the delivery of it rather than organizing a series of handoff

The best way I've learned to build working software is to have a group working together driving at the delivery of it rather than organizing a series of handoffs. Not only do people have context switching concerns at the task level, but teams and organizations have context switching concerns: more tasks in progress mean more organization thrashing and things drop on the floor.