Earlier quoted context omitted.
A lead link can appoint people to roles, but the people have autonomy in that role. A manager has the authority to both appoint roles and micromanage execution. Also, there is a parallel to lead link called rep link who is appointed by the lead link's circle to check against bad decisions/behavior by the lead link.
Another way to look at 'micromanage execution' is as 'support and mentoring in the role' based on honest feedback on perceived performance. How do people get support for challenges?
Edit: I forgot to add that anyone who perceives a person is not receiving support for their responsibility can raise a tension. It's not just the manager's and the employee's job.