Our readingWhat is a korrent?
People who manage product managers should still spend almost all of their own time doing individual contributor work
Drawn from what David Heinemeier Hansson said
What these subjects mean
design How things should be made and judged: what makes a design good, who should do the designing, and what an interface is for.
product management What a product manager is for, who decides what gets built, and what happens to that job once delivery is cheap.