The most productive working relationships are challenging.

They're tough! That's what makes them so productive!

The right dynamic tension is the source of light and insight.

The person who complements your blindspots the best will be the most frustrating to work with for you.

They'll keep on pointing out things you missed… and be right!

And when they do it, you'll start off thinking they're wrong (it's in your blindspot) and only after a lot of challenging back and forth will you realize they're right.

A goal for a relationship: to be as challenging as possible to create value and insight, while minimizing the chance of ever getting to the breaking point.