I'm a little new, so please excuse the ignorance....but isn't it each federation that decides what skaters to send? And wouldn't the coaches have something to say about it? For example, it seems to me that the top ranked teams normally don't all compete together until the GPF. They all want to make the GPF so maybe federations/coaches choose assignments accordingly for their best skaters? And maybe part of the decision making is about where the 2 assignments are located? QUOTE]
I don't know the details, but I think the rule is that the top 3 teams can't meet until the final. So in the 6 GP events, there should be 1 team/skater that is ranked in the top 3 from worlds. The same applies, I think, for teams ranked 4-6. Of course, skaters retire or get injured. This weakens some fields.
And the federations can't just choose any athletes. There are rules about seasons best scores, and certain athletes are guaranteed one or two events. After the guaranteed spots are filled, then federations can invite skaters (possibly off the list of top 75 seasons best score? any clarification here would be appreciated) Federations automatically get 3 spots in a competition hosted in their country, and that's the time they can choose any skater they want -- ex. Sarah Arnold and Justin Trojek) at Skate Canada. I don't think a federation would want all their top skaters competiting against each other, because one could knock another out of contention for the GP final. But, obviously you're right about the numbers game. The more skaters from a country competing, the better the chance of winning a medal.
Does someone know about coaches, and if they get a say? I noticed that D/W and the Shibs compete together in both their GPs and was wondering if that was done partially so coaches don't have to travel to every event.