While micro-management can be frustrating, there are very important landmarks within the human resource frame that create a context for how a professional relationship can move forward. Leaders need to maximize every opportunity they have to share their vision and relay their expectations.
The job description is one of the first pieces of that communication process.
Included is a sample of a job description deployed in hiring a part-time (20 hours) assistant while I was employed as Strategic Communications Director. The responsibilities were chosen to be a mix of opportunities for learning--and, by extension, mentoring--as well as providing some necessary support for my position as I entered a demanding phase of planning and implementation in association with a large project.
In this specific instance, I was able to find an excellent candidate who was successful on multiple levels, allowing for me to broaden my focus and complete the project push.