Employers want corporate trainers who have the teaching and presentation skills to design and execute effective training programs for their employees. Expect to answer questions about your people management experience and ability to adapt training practices to the company's needs.
If you are in charge of 30 people and there were 5 that were doing really well, 10 that were mediocre and 5 that were just not doing their job and not putting in any effort, how would you effectively better the situation?
Fire the bottom 5 and hire 5 new people.
I would find my last 10 employees :)
I would figure out the 'WIIFMs' for the 5 not putting in effort, and come up with a POA for them in a one-o-one session. Make the 5 good ones take some responsibility for the 10 mediocre associates, which would inculcate peer learning and inter- team interactions.