Out of curiosity, how well would an editor-turned-agent be at handling areas outside of those he edited? For example, Greg Daniel seems to have spent much of his career at a christian publisher, how well might he do handling a mystery, or a romance novel, or a horror novel?
Obviously, he wouldn't have the same level of contacts for those genres, but could he still be effective?
(Of course, authors will always want to put agents who handle/specialize in their subject at the top of the list -- hopefully I don't need to say that!)