There are only so many spots in the Red Sox' pitching staff, and more than a few prospective pitchers in camp.

Andrew Miller and Felix Doubront are two candidates for roles with the Red Sox this season. Both have adjusted their mechanics, with Miller simplifying his approach to get back to fundamentals and Doubront adjusting the way his landing foot hits the ground.

Check out more from Red Sox beat reporter Didier Morais in the video above.