I was happy to see an interview of my friend and colleague Francine Campone on the ICF blog. From "Why the Science of Coaching Matters: A Q&A With Francine Campone, Ed.D., MCC":
A decade ago, I dined at an ICF event with an experienced Executive Coach who told me, point-blank, “I don’t need research. I know what works, and I don’t need to know the data.” I don’t hear that from coaches anymore. I don’t hear people saying that research is irrelevant. As the profession matures, we are seeing an increase in the number of experienced coaches who recognize the need to understand the science behind coaching.
Click to read the rest. And click to read a post I wrote about the book she mentions titled A Guide to Third Generation Coaching. I found that book and Dr. Campone's interview valuable. Both are recommended.