Getting better ain't easy. It almost always means adjusting our habits (either adopting new ones or abandoning old ones).
Getting better as an individual is hard, really hard.
Getting better as a small team is harder, really harder.
Getting better as an entire organization is harderer, REALLY harderer.
Why? With each added person, the complexities of getting better get messier. It means adjusting personal and organizational habits. Layered, nested, intertwined, tangled habits.
The high cost of avoiding the messy business of getting better is ... that we DON'T.