How do you evaluate success among your team members?

"I have a very in-depth and successful system for evaluating success among my team members. I do my best to ensure my evaluation methods are quantifiable. I check in twice per week with each member of my team normally and more often if one of my team members seems to be struggling. We meet on Mondays - to set our goals together. Then, on Fridays, to discuss any successes and challenges. I have them self-evaluate, and then we create a plan for success for the upcoming week. I evaluate their success based on their follow through and willingness to work hard to reach their goals."