IMO Kwan
didn't know when to call it quits. She was too injured to compete at '06 Nationals (and had been injured for quite some time already at that point) yet she refused to step back and allow another American skater, Sarah Hughes, to be a part of the opening ceremony in Torino, have the thrill of walking behind the flag (sure Sarah eventually got to Torino to compete but it would have been nice if she'd had the whole experience). Michelle had already competed in two Olympics, and yes, we were lucky to see several beautiful performances for the next couple of years. But even after she couldn't compete at Nationals she still wouldn't face reality that her body was "done". I've always been a fan of MK but that decision of hers really bothered me.
Snip. Some would say that Kwan should have retired after Nagano, then she gave us three more gloriuos years. Some said that she should have retired after Salt Lake, then she gave us those beautiful National programs. By the time Torino arrive there wasn't much of her left. I bow to her for knowing when to call it quits.
I think you have the Hughes sisters mixed up. It was Emily not Sarah who took Michelles' spot in Torino. Sarah won 2002 Olympics.