While above all I would prefer to be firing Professor Umbridge for her blatant favoritism and biases against what most people would actually consider good education, since she was a Ministry plant, I will refrain from going for that obvious response.

Instead, I will choose to terminate Professor Snape's employment at Hogwarts. He obviously worked in much the same way as Professor Umbridge, both as evidenced by her words in this report and by historical anecdotes tht are not part of this. While many people "learn" in an environment of fear, it is not a method I would think should be lauded. And not only did he relish instilling respect through fear, he blatantly showed favoritism toward his own house's students, letting them get away with much more than anyone else could even think of. The least of the worries with him was whether or not the potions he taught were of a level that was appropriate for students. Many students with the aptitude had the capabilities to brew much more complicated potions, even without his lurking over them. He would be much better off able to go off and nurse his biases outside a class setting without taking them out on innocent students.

In the matter of who seems best suited for their job, I would have to support Professor Sprout. It would be easy to say Professor Flitwick, since I have a personal like of his subject, but the fact of his classes often ending up with mishaps cannot be entirely forgotten. However, everything Umbridge listed as a negative for Professor Sprout is actually a positive. Especially her use of group work. The study of herbology is not an exact science, by far, consisting of a lot of things that come down to basic nature and things we cannot control. Being able to learn these things from each other can often be more beneficial than having a professor lecturing you about them, and Professor Sprout was always at hand to help. The matter of foul language is not as bad as it sounds either, since the students would have used the language anyway, outside the classroom. Sometimes the frustration brought about by dealing with bubotubers, flutterby bushes, or even moreso the more dangerous plants necessitates some release and cursing is often the best way.

Therefore, my final decision would be to fire Professor Snape for his obvious biases, and approve highly of Professor Sprout's abilities to convey her subject while letting the students be able to work their own ways.