Why do we fall into ruts so easily, as individuals and organizations?

Because what's the one answer everyone can assume everyone will consider the default?

Whatever we did most recently that was good enough.

You can go with the flow and do that automatically.

No need to think or stick your neck out... to others, or to yourself.

Every other option has to show that it's sufficiently better than the default to be worth the risk of a new thing not working.

"If it ain't broke, don't fix it."