I have a PhD in Neuroscience and am currently a postdoc. Until now, I have been pursuing a career as an independent investigator (PI) in neurobiology. I've had a change of heart because I don't want to manage people and when I think about the parts of my current position that I like the most, virtually all of these parts will disappear when I become the person in charge of a lab.
I think I would really like a career in biostatistics. Math was my undergraduate major and I have really missed rigorous, quantitative thinking since that time (my neuro work has not been computational; as an aside, I have considered this route but still run into the terminal problem of not wanting to run a lab). Most "how to get a career in biostats" advice that I've read have (understandably) been written for folks who do not yet have a graduate degree and typically advise seeking an MS in stats/biostats.
Is such an MS in stats/biostats necessary/worth my time (and $$$) if I have a PhD in neuroscience (and undergraduate math with a couple stats classes) and have used R for data analysis for years now? Alternatively, I've seen a fair number of graduate certificates in biostats that might get me up to speed and increase my employability without the time and financial investment that an MS requires.