Usually, this caucus vote would continue multiple times with various slates of contenders, as repeated voting draws out the consensus thinking of the body. If neither remaining candidate can get a majority, then new candidates will step up as factions combine and split with each iteration, until a consensus candidate emerges.
At least, that's how it used to be done before careerists took over and made every vote a scripted, pre-determined outcome that shred only to protect their own interests. Now, lame-duck Boehner is preventing House Republicans from caucusing to discover their mutually agreeable Speaker. Instead, Boehner is slinking back into the back room for more scripting.
-PJ
Webster sounded good to me.