A lot of classic Lets Run armchair quarterbacking on this thread by brave keyboard warriors who don't know dung. Let me clear up three issues:
1. Mark is an amazing coach - Queens is very luck to get him.
2. Mark will be working with his current group through to Tokyo next year.
3. Fiona Benson decided to step back from the sport for a variety of reasons. It's unfair to infer that somehow that Mark ran her out of the sport. All high-end coaches have athletes who leave their groups - a single athlete no longer competing does not sully his reputation in the least.