Two years later, Guerin has been hired to coach the Pierce City girls in 2012-13.
The position became vacant with the move of Tiffany Dirks to Carl Junction after a year as the Lady Eagles' head coach.
Guerin, 33, was head coach at Crane for five seasons after a pair of seasons at Exeter. This will be his first taste of coaching girls.
"It will be a culture shock, for sure, the switching of coaching boys to girls," said Guerin said. "But it's still basketball. I'm excited about the opportunity."
Pierce City rolled up a 20-6 overall record in 2011-12 and won the Spring River Valley Conference at 9-0.
"The key for the team right now is start learning to play together," said Guerin. "The girls will have to learn a new style and it is going to take an adjustment period."
Guerin runs a hybrid-motion style offense with a mix of set plays. Man-to-man will be the preferred method on the defensive end.
"We try to create a "best shot" opportunity with our sets," said Guerin. "On defense, it is more of a helping man-to-man. We want to pressure the ball and dictate tempo."
Guerin, is a graduate of Chadwick High School (1997) and Missouri Valley College of Marshall. He was an all-stater at Chadwick and helped the 1996-97 edition finish third in Class 1 for Terry Jester (now coaching at Galena, Mo.) by beating Golden City.
"I want people to see a team that never gives up,' said Guerin. "Pierce City has had a culture of winning the last few seasons and I want to continue that theme."
His wife, the former Gretta Wise (a standout in athletics at Crane), works for Skaggs Regional Medical Center in Branson. They have two sons -- Gage, 6, and Bryer, 4.