Somerset have handed coaching roles to Dave Houghton and Jason Kerr.
Houghton, a former Zimbabwe international who was not retained as Derbyshire's batting coach last month, has been appointed first XI assistant and batting coach while Kerr has been promoted from within to the position of bowling coach.
Director of cricket Dave Nosworthy said: “We are really excited to have someone of Dave Houghton’s stature and credibility on board and know that he will have a lot to offer us going forward.
“He is a good man with an excellent work ethic and I am really looking forward to having his expertise around.
“The appointment of Jason Kerr from within our own structures is also really exciting as he has the respect of the players and will no doubt also bring his vast knowledge and expertise into the first XI environment. I look forward to working closely with Dave and Jason and together taking this team forward.”