The Leadership Team – Circle of Security International

Circle of Security Leadership Team

The Leadership Team


Gretchen Cook
Director of Operations

Gretchen joined COSI in January 2011 as our Program Manager. She graduated from the University of Washington with a Bachelor degrees in both Design Studies and Women's Studies. She completed her MBA from Whitworth University to help COSI grow. She helps keep the big picture goals in motion to allow COSI to grow in a manageable way. Things have changed dramatically at COSI since 2011; as demand for trainings has increased so has the need to grow our office staff, keeping Gretchen on her toes!

When she is not working Gretchen enjoys quiet weekends at home with her husband and daughters. She has a zeal for the crafty/handmade side of life, and gets to exercise her creative brain through modern quilting and longarming, or making something fabulous in the kitchen.


Deidre Quinlan
Project and Professional Development Director

After several years of clinical supervision with the COS originators, Deidre started working on special projects with COSI in 2012. Today she continues her focus on the development of Circle of Security projects, both prioritizing new ideas as well as assessing the goodness of fit of new projects. She is leading our efforts to develop and coordinate the implementation of Circle of Security Parenting Classroom around the world..

As her work with COSI takes her to far off places, Deidre's hope is to ride horses with our COSI friends all around the world.


Neil Boris
Research Liaison and Medical Director

Neil was an early adopter of the COS model, connecting with Glen, Kent and Bert in the late 1990's. He began working with the intensive therapy model in 2003 and, once COS-Parenting came on the scene, with that program as well. He started training in 2014, joined COSI part time in 2017 and took his current position at the start of 2018. He is the first point of contact for those interested in conducting research on any of the COS models and helped develop the Fidelity Coaching pathway. Neil is leading our efforts in eLearning, heading up a team that hopes to build much more COS-related content for online learning in the coming years.

He practices the Circle at home under the guidance of his wife, Adena; the joy he gets from being a father of 3 amazing kids can't be put into words. When he can, he enjoys riding his bike, cooking, reading and pondering spiritual dimensions.