Nothing Dawkins says or does has any affect on Collins' accomplishments or job performance.
Collins is not the scariest kind of believer IMHO, but I am keeping an eye on what he does. American Xians have a very recent history of stopping ethical research because it conflicted with their beliefs and misunderstanding of science. These actions not only affected me personally, but may result in preventable premature deaths--mine and others'.
Time will tell if he will avoid letting his beliefs interfere with his job. It is certainly possible he'll avoid doing so.
Collins is now one of the most powerful scientists in the world. He is being paid by our tax dollars and is in charge of deciding how an enormous amount of our money is spent. A little discussion about him as a person is appropriate.