 What these workers do not offer is a Behe-type answer. First, they brush away a false lead. Could it be that we have something like the evolution of the mammalian eye, where primitive existent eyes in other organisms suggest that selection can and does work on proto models (as it were), refining features which have the same function if not as efficient as more sophisticated models? Probably not, for there is no evidence of anything like this. But then we are put on a more promising track. 