They'll assist Director of Rugby Kevan Oliphant and Tim Sawyer, who is Director of Coaching, with Boatman involved with the forwards and Dixon with the backs.
Kevan Oliphant says: "Both Tim and I share the view that you need to have new input on a regular basis. It helps keep things fresh and it's great to get new ideas.
"As a club we want to develop our own talent as much as possible and that includes bringing on our own coaches. In these two we have individuals who can go on to serve the club for years to come."