Farmaajo created an integrated army, formed units such as Gorgor and Haramcad, paid the salary of the SNA on time and increased it twice, and increased NISA size in order to chase and capture plain-clothed Al-Shabaab terrorists. He's transformed SNA units from clan militia to a regular army.
Before Farmaajo assumed office, SNA didn't have a single file. No one knew who was a soldier. The US govt and others suspended the financial assistance to SNA during Hassan Sheekh Mohamud because SNA was used just like an NGO where different officers were using it as a funds-collection enterprise. And after Farmaajo-led government initiated and implemented reforms that ensured the Somali soldiers get themselves identified with their finger-prints collected and received their salary in their accounts, the international community trusted the Somali government's reform programs and re-instated the financial support to SNA and to other units.
You're really comparing day and night if you want Sheekh Shariif and HShM presidency with that of Farmaajo. Under ShSH and HShM governments, AMISOM was leading the fight; whereas under Farmaajo, it was the SNA. The SNA liberated many towns in Lower Shabeele and was stationed on many of the country's borders. The Somali people know who has done more for the country.