SIOUX FALLS SD (KELO) -- The new Governor Larry Rhoden has announced some staffing changes to his administration. Rhoden was formally sworn in Monday morning after former Gov. Kristi Noem resigned her position after being confirmed by the senate to serve as the Secretary of the Department of Homeland Security, upon President Trump's appointment. Who is South Dakota’s new governor, Larry Rhoden? Rhoden will keep most of Noem's previous staff, with a few slight changes and additions, according to a news release. Mackenzie Decker will serve as the Governor’s Chief of Staff. Decker has worked for state government for 12 years, joining the Governor’s office over two years ago. She has worked for several state agencies including the Department of Labor and Regulation, the Governor’s Office of Economic Development, and the Department of Revenue. She graduated from South Dakota State University and earned her master’s in administration and organizational leadership from the University of South Dakota. Matt Michels will serve as Senior Advisor and Counsel to the Governor. Michels previously served as the 38th Lieutenant Governor of South Dakota from 2011 to 2019 under Governor Dennis Daugaard. He was a Member of the South Dakota House of Representatives from 1999-2007, including Speaker of the House from 2003 to 2007. Ian Fury will continue in the role of Director of Communications and Unborn Child Advocate, though he will not serve as the Governor’s media spokesperson. The news release said the announcement of the spokesman should come later this week. At the swearing in ceremony, Rhoden said he will announce his LT. Governor in several days.