Sprints: A Tool for Deliberate Practice
In Angela Duckworth's New York Times' bestseller, Grit: The Power of Passion and Perseverance, she states, "If doing something repeatedly might be considered practice, deliberate practice is a different animal: it’s goal directed, often solitary, and consists of repeated striving to reach beyond your current level of performance."
On page 123 of the book, she addresses the question: How can you get the most out of deliberate practice? I think that her requirements connect well to the Sprint routine.
Each of the basic requirements of deliberate practice is unremarkable.
a clearly defined stretch goal
full concentration and effort
immediate and informative feedback
repetition with reflection and refinement