Agree, Cesario should get 2 assignments. The US Fed could wait to see, after the normal withdrawals, if one of the other 5 GP's select Cesario. If that doesn't happen, the US Fed can and should use their TBD at SA to select Cesario. The US ladies, at 16 named entries plus 1 TBD, 17 total, are already close to the max of 18 entries, (6 GP's X max 3 per country equals maximum 18 entries.)
Currently, the only event where there are not three ladies (other than SA w/ the TBD) is Skate Canada. There's a few possibilities:
1.) There is speculation that Vanessa Lam may not end up taking her assignment at Rotelecom Cup. She currently not on the ISP or on any funding envelopes.
2.) If the rumor is true that Marchei is trying out pairs and she isn't going to do singles, then a spot opens up at Skate Canada.
3.) China could opt to not use their TBD spot. I would be surprised if this actually happens, but it seems there's not a ton of girls they're eager to send.
4.) And obviously she can get the TBD at Skate America.