This just struck me. No particular reason in mentioning it... Just a thought.
The caucus MPs selecting a leader in caucus, then going to the party a few months from now for "validation" by member election, is the VERY same thing as Parliamentary MPs selecting a Parliamentary leader right now, then seeking the "validation" of the Canadian public in an election several months down the road...
Interesting, isn't it? Particularly when some of us support the coalition, but not the choosing of a leader in a similar process. Both are similar, and both "legal" per the constitutions and/or traditions of the concerned bodies.
Things that make you go "hmmm..."