You certainly don’t know how university’s work. Dr. Swamidass can explain further, but Universities are about prestige, legacy, and endowments. Oxford is one of the oldest and most prestigious university in the world. To have a distinguished professor of zoology who wrote the “Selfish Gene” is in keeping with the scientific research and knowledge advancement ideals of Oxford. But to have the author of “The God Delusion” on its staff is the ultimate in prestige, legacy and hugh increase in endowments for the university. The opportunity only comes once every century. Newton (Cambridge), Darwin, Einstein (Princeton), Dawkins (Oxford), Hawking (Cambridge) only comes around a few times in a university’s legacy.