Answer is: career experiences.
Explanation:
Munford's approach to leadership skills holds that there are five aspects (elements) of all skils:
1. Individual attributes
2. Competencies;
3. Leadership outcomes;
4. Career experiences;
5. Enviromental influences.
For this case, it is quite evident that Leo's leading of the downsizing and termination fo employees is part of Leo's personal background, which, as said, is influencing Leo's own leadership approach in this current job. Therefore, it could be no other of Munford's five-elements-to-leadership-skils, but career experiences.