In the best of all possible worlds, concept precedes execution. But as we all know, this is not the best of all possible worlds. Ever get one of those “here are some pictures from our library— can you write some headlines to match them?” jobs? This series of bus boards is exactly that: photos from Breck’s photo library in search of headlines relating them to their ski school. Copywriter: D.P. Knudten Agency: Wilson Lass Imagemaker…