Like you and Org say, Phelps to the 60-day for Buchholz makes sense, but Norris seems like a near lock to make the team and that's going to be an interesting choice. There are only a few real options left:
Luciano - has looked good so far, and I think they'l keep him around
Urena - probably not even really an option given the lack of infield depth and Travis' injury
Pompey - sucks and out of options
Davis - sucks and has options
I guess we could also see a Morales DFA, but that would be a bit of a surprise.