This way it's all standard and no one overlaps someone else unnecessarily in the writing of tutorials or other how-to documents.
Yes, that is the primary purpose behind having the Headmaster, along with the
board of education approve instructors. On this front, we can ensure that instructors are approved on a per-series basis, and we can ensure that we do not, for example, have the problem of TheDarkJay and Infinitus both writing a tutorial on designing an effective file archiving algorithm using C++.
This will help to keep competition from escalating to a level where it degrades the quality of service, while also ensuring that we keep quality (in the aforementioned example, Jay and Infini could compare notes, possibly collaborate, and we can make sure that the highest quality is reached for the tutorial series) and cover a broader spectrum of topics by encouraging those who wish to become instructors to cover topics that have not yet been covered.
In the case that we run into one person wishing to develop a system that they feel would be more effective or more efficient (using the earlier example, we can say, perhaps, that Jay believes that his method is more efficient on memory than Infini's), and neither wanted to step down, it would fall upon the Board and the Headmaster to resolve the issue and decide which (even both. We don't have to be
strictly one-tutorial-series-per-subject, as it discourages instructors. Having multiple opinions on a matter is a great way to learn.) to keep. This would prevent us from, for example, having five tutorials, all covering how to create an effective prioritized movement engine using Game Maker.