Pardon my ignorance, but how is it sad that it had more performances in LA than it did in New York? Center Theatre Group essentially commissioned the show to run from September 11 to October 24. I can't imagine why it would close earlier, even if it wasn't selling well there. The Ahmanson has both original(ish) productions and national tours, and I'd be surprised if anything there closed "early"—a national tour certainly wouldn't stop performing just because its last few weeks of a run weren't selling well, so why would they have shuttered Leap of Faith at the Ahmanson early?
Incidentally, I saw it there and I don't remember it being so atrocious as everyone says it now is. I wonder if they've made it worse since then (though everyone who's seen it in New York should be glad that Brooke Shields is NOT in it), or if I just remember it more fondly than it deserves. I thought it was a generally pleasant and fun show—though perhaps not ready for Broadway yet. I don't think Raul Esparza was as disenchanted with the show at that point, either...
I guess I remembered it as being better than it was; the LA reviews were pretty much all negative.
http://losangeles.bitter-lemons.com/2010/10/06/leap-of-faith-40-bitter/