In an interview with an al Shabaab run Radio, Sheikh Ali Mohamoud Rage, the spokesman of Al shabaab said they will cooperate with the new leader as much possible as they could.
He said his group announces its allegiance to Ayman Al Zawahir as it used to be under the control of the slain leader Osama Bin Laden.
http://allafrica.com/stories/201106171119.html
From another source
Other foreign al Qaeda operatives also hold key leadership positions in Shabaab. Shaykh Muhammad Abu Fa'id, a Saudi citizen, serves as a top financier and a "manager" for Shabaab. Abu Musa Mombasa, a Pakistani citizen, serves as Shabaab's chief of security and training. Mahmud Mujajir, a Sudanese citizen, is Shabaab's chief of recruitment for suicide bombers. Abu Mansour al Amriki, a US citizen, serves as a military commander, recruiter, financier, and propagandist.
