The move comes with Leeds sitting second bottom of Group 'D' in the under-18 Premier Academy League, with only one point from a possible 15.
Shaun Harvey, United chief executive, outlining some of the reasons behind the pair's removal, said: "If you think about it, there hasn't been a big name for a couple of seasons. We can't afford to be complacent about the Academy and we can't assume that because we've produced a great number of players in the past, we'll automatically continue to do so. We genuinely felt the Academy would benefit from new leadership and fresh ideas."