Many are the plans in the mind of a man,
but it is the purpose of the LORD that will stand.
Such as, the plans we made for the past few months to bring in Dr. Mike Licona, something of an expert in the field of "historical Jesus" research and especially with the historical argument for the resurrection of Jesus. (Here's his website. Here's his monster tome on the resurrection (it's very good). Here's a very shortened version of the book, he coauthored with Gary Habermas.)
We'd spent what probably amounted to hundreds of hours preparing to bring him in, put up a couple hundred posters, passed out a couple hundred flyers, facebook advertising, lots of phone calls and lots of time...then, Delta cancelled his flight and it all went downhill. We ended up simply canceling the event, and whoever didn't hear about it joined us for a couple hours in a small room in the union watching one of his lectures, instead. For what it was, it was a good time. We ate our fill of cheese and crackers (which were enough for like 150 people, not 30), enjoyed the lecture and did our own Q&A after it. (I'm familiar with the content, and Mike Berhow, a friend, is considerably more familiar, so it was a good time).
So, why did it happen this way? The short answer is Proverb 19:21. The shorter and less helpful answer is "I don't know". But, perhaps next year!