Mullah Omar's Limits
"Mujda claims that Mullah Omar was not completely in favor of appointing Mansoor as Mullah Dadullah's replacement. 'Omar opposed many actions of Mullah Dadullah, like the tactics of Abu Musab al-Zarqawi, which Dadullah exercised in Afghanistan,' Mujda explained. 'Dadullah did not care much about Omar's or any other high-ranking Taliban official's orders. He willfully adopted most of the new tactics. Because of this, Omar was opposed to Mansoor's appointment because he fears that Mansoor will be like his brother.'"
I'm too rusty to find much significance in this, but thought it was vaguely interesting.