Based on the context and the answer, generate a question. 

Context: I was reading this week about the coaching setup in cycling that has propelled the track team to gold medal after gold medal in Beijing . One thing that stood out was how varied the coaching staff were . To start things off you had Keen who was barely out of his 30 's at the time he took over .

Answer:

None of the above choices .



Why is the writer impressed with the variation among the coaching staff ?