Coaches don't need to be runners - an old coach of mine was not a runner but was a great coach (he had coached 40+ athletes to international competition selection).
Group leaders however need to be comfortable at the pace of the group.
Is going to be more difficult now compared to '08.
Job is very different, I used to be able to plan exercise and recovery. But I had football training this afternoon, got a bootcamp tomorrow. Wednesday is a hike!