The timing of this piece by @Ali_H_Soufan in @CTCWP is impeccable. Interested in learning more about Saif al-`Adl, the al-Qaeda member who could end up becoming the organization's next emir? This is THE definitive profile. https://ctc.usma.edu/al-qaidas-soon-to-be-third-emir-a-profile-of-saif-al-adl/
This piece pairs well with other profiles researched and written by Soufan, including one on Abu Muhammad al-Masri in @CTCWP from November 2019 https://ctc.usma.edu/next-line-lead-al-qaida-profile-abu-muhammad-al-masri/
And another from September 2017 of Hamza bin Laden, Osama's son, and at one point considered al-Qa'ida's next "leader in waiting" https://ctc.usma.edu/hamza-bin-ladin-from-steadfast-son-to-al-qaidas-leader-in-waiting/
Of course, this thread would be incomplete without a mention of Soufan's November 2018 profile of Qassem Soleimani, which remains one of the most definitive deep-dives on the former IRGC-QF commander https://ctc.usma.edu/qassem-soleimani-irans-unique-regional-strategy/