Ummm why could it cause a problem? Even if Power, Emmel and Diamandis all got on and voted against Fitton, Fitton would still have enough of the control to go against them and win in any vote.
There are rules about the rights of minority shareholders, so if MD owns more than 25%, even though AF can outvote him, he cannot just go ahead and do what he wants. There are certain things that MD can influence.