Speed, Quality and Cost

"Speed, quality and cost. You can pick two at the sacrifice of one. Which do you choose?"

I've now seen this called The Iron Triangle of Customer Servicedigitalgenius.com or the Project Management Trianglefractory.com.

This has come up a few times in my career when teams were overwhelmed and stressed because the people who had expectations about how the team worked together expected all 3 things in a binary way.

I think using this heuristic should primarily be used when thinking about how people work together when considering these three things.