Aim for 85% to create sustainability

Coaching everyone to aim for 85% in their work, rather than striving for perfection, helps create sustainability and prevent burnout. Constantly striving for perfection leads to chronic overachieving and can cause the team to work excessively. By aiming for 85% and then iteratively improving, the team can maintain high quality while avoiding burnout and ensuring the sustainability of the project and the well-being of the team.