Al Qaeda's interim leader is Saif al-Adel, who has long played a prominent role in the group, according to Noman Benotman. Benotman has known the al Qaeda leadership for more than two decades. He was once a leader of the Libyan Islamic Fighting Group (LIFG), a militant organization that used to be aligned with al Qaeda, but in recent years renounced al Qaeda's ideology.

Saif al-Adel, also known as Muhamad Ibrahim Makkawi, had been chosen interim chief of al Qaeda because the global jihadist community had grown restive in recent days about the lack of a formal announcement of a successor to bin Laden.

The presumed successor to bin Laden is his long-time deputy, Ayman al-Zawahiri, who is also Egyptian. Benotman, who has long been a reliable source of information about al Qaeda, said the temporary appointment of al-Adel may be a way for the leadership to gauge reaction to the selection of someone from beyond the Arabian Peninsula as the group's leader.

Al-Adel fought the Soviets in Afghanistan during the 1980s. After the fall of the Taliban in the winter of 2001 he fled to Iran. According to senior Saudi counterterrorism officials, from there al-Adel authorized al Qaeda's branch in Saudi Arabia to begin a campaign of terrorist attacks in the Saudi kingdom that began in Riyadh in May 2003, a campaign that killed scores.

The selection of an interim leader allows al Qaeda to begin the process of collecting allegiance, or baya, from al-Qaeda affiliates such as the Yemen-based al Qaeda in the Arabian Peninsula and the North Africa-based al Qaeda in the Islamic Maghreb.