Our Team

Yep. These are the folks who make it happen at MBI.


Ron Brewster

MBI Director

Ron came into YWAM in 1987.  Aside from 3 years on staff at a Foursquare church in Roseburg, Oregon, Ron’s ministry career has been largely dedicated to YWAM. From 2002-2010 he was the director at YWAM Lakeside, Montana. He was managing director for YWAM San Diego, Baja from 2013-2018. One of Ron’s passions is leadership development, and in 2012 he received a Masters of Arts in Leadership.

Ron is married to Jeanette and has two children.

Jeanette Brewster

Volunteer Services Coordinator

Jeanette grew up in southeast Idaho. She did her DTS at YWAM Montana Lakeside in 1990 and then joined staff the following year, serving until 2013. She also served at YWAM San Diego Baja from 2013 to 2018 in administration, student services, and debriefing. Jeanette completed her AA in Biblical Studies with the University of the Nations in 2013. She has also been trained in personal debriefing.

Jeanette is married to Ron Brewster and has two children, Meraiah and Sebastian.

Brad Spencer

Volunteer Services Coordinator

Brad comes from a four-decade-long background in industry as an electrician, electrical engineer, and project manager. In 2012 Brad and his wife of 39 years, Debra, participated in an MBI Crossroads DTS, then led corporate teams to YWAM San Jose, Costa Rica, to work with the Homes of Hope ministry. In 2016 they rejoined MBI as both board and staff members. They support MBI’s volunteer recruitment efforts from their home in Canada.

Brad and Debra have three adult married children – all of whom are serving in ministry or missions – and seven grandchildren.

John and Donna Briggs

Bio to come!


Gordy McDonald

Leadership 13

Bio to come!

Dawn Masucci

Leadership 13

Dawn has been involved with YWAM since 1986. She lived in Hong Kong working with an evangelism ministry for four years, moved to Montana in 1992 and has held the following positions: SBS staff and leader, Programs Director, served on the council and leadership team and lead one of four Families of Ministry. Dawn and her husband also travel and teach in various YWAM schools. In 2007, Dawn graduated with a Masters in Leadership – emphasis on Cross-Cultural Team Dynamics. Dawn has a passion to see people and teams empowered to be all God has called them to be. Currently, she is on the MBI (Mission Builders International) Core Leadership Team and is the lead for Leadership13.

Jason Howard

Jason did his DTS in 1995 at the YWAM St. Croix campus. He has an accounting degree and worked as the business administrator for YWAM Montana Lakeside for twelve years. He also was involved with the School of Biblical Studies (SBS) for ten years. Jason loves to help YWAM bases become aware of where they stand financially so they can make good decisions.

Jason is married to Reba and has three children.

Reba Howard

Bio to come!

Julien Paya

Bookkeeping and Digital Marketing

French-born Julien Paya took his DTS training in the fall of 2005 at YWAM Metro, New York, and served on staff in a variety of capacities afterward. In June of 2009, Julien came to YWAM Lakeside Montana to participate in their Summer of Sports program and joined the Sports staff afterward, where he served for a year. Julien next attended a School of Biblical Studies (SBS) at YWAM Taipei, Taiwan, in March 2011 and stayed on afterwards to serve with the Titus Project and SBS. In February 2015, he took on the role of Taipei coordinator for the Surge Partnership with YWAM Lakeside Montana. During this time, he met his wife Kadyn, and ten months later they were married. Julien served in Taiwan for a total of seven years.

Julien and Kadyn left Taiwan in May 2018 and joined Mission Builders International that fall.

Kadyn Paya

Graphic Designer

Kadyn was introduced to missions as a child when her family served in Nigeria. She earned her degree from Whitworth University in art/graphic design and has worked in the fields of graphic design, education, and social services. Kadyn completed her YWAM DTS in the Middle East and has served in missions since 2013 as a graphic designer, creative media department lead, hospitality staff, writer, and as an administrative assistant. She has served short-term in several countries and lived in Korea, Nigeria, France, Taiwan, and the U.S.

Kadyn enjoys learning, reading, art, and exploring the great outdoors with her husband Julien.

Lane Lackey

In 1999 Lane graduated from Georgia Tech with a degree in industrial engineering and then worked for several large corporate companies (Nike, Columbia, Disney) as a business analyst. In 2012 she joined YWAM Montana, where she served with 100 Fold Studio. Lane is passionate about processes and systems – she loves to make things more efficient and also implement and train others on software systems to help make their jobs easier.

Lane is married and has three children.

Craig Blair

Craig Blair

Communications Staff

Craig Blair is a native of Montana and grew up in the local Flathead Valley town of Columbia Falls before attending college in Havre, MT. It was during his freshman year at college that Craig clearly heard the gospel and put his trust in Jesus Christ as his savior. Following his graduation from college, Craig joined the ministry of Campus Crusade for Christ.

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Andrew Hobby

Bio to come!

Becky Hefty

Communications and Field Staff

Becky Hefty did her YWAM DTS in 1976 in Bozeman, Montana, where she met her late husband Larry Hefty. After traveling the continental U.S. with their band, Shekinah, for six years, they rejoined YWAM in 1985 to help pioneer the YWAM Lakeside Montana campus, where they served with the Performing and Fine Arts Department until 2000. Larry passed away early in 2007. In 2008, Becky graduated from the University of Montana in Missoula with a BA in English, creative writing and literature, and a minor in history. She has served in communications with MBI for the last twelve years.

Becky has three adult children, three grandchildren, and a horse named Moon.

Greg and Jan Griffin

Field Staff

Prior to joining YWAM, Greg Griffin worked in a variety of industries including residential construction, dotcom, and bio-technology. He was also a certified manager for PMI (Project Management Institute) in the Silicon Valley. His training in the corporate world gave him some unique tools, skills, and experience to bring when he and his wife Jan felt the call to missions. After living and serving in South Africa, Greg and Jan joined MBI as field staff in 2007 and have worked on a wide variety of projects from teaching to designing staff housing to creating new technologies for growing food to creating a worldwide project-funding website (HopeVault.org). His goal is to help make frontline missions more effective. 

Jan is a gifted mentor and seeks to connect and build relationships with young women in YWAM and the local community. She is often referred to as a “universal friend.” 

Greg and Jan have three adult children – Matthew, Natalie, and Heidi – and three grandchildren.

Brad and Joyce Rauch

Field Staff

Brad Rauch and his wife Joyce has been involved in ministry for over 35 years.  Most of his career has been spent in Christian broadcasting in Montana. Brad felt God direct him to Mission Builders International’s first Crossroads DTS in April of 2011.

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