Geza wants Mnangagwa to be replaced by his deputy, Constantino Chiwenga.
Chiwenga, the protagonist of the November 2017 coup, has not uttered a word.
But party spokesperson Christopher Mutsvangwa ,in an interview with Dug Up, a Zimbabwean investigative outfit, accused Chiwenga of harbouring presidential ambitions.
He also referred to Chiwenga as uneducated and unelectable for the presidency.
Mnangagwa moved with speed to change top bosses in the country’s security sector ahead of the March demonstrations viewed as a failed coup attempt within the ruling party Zanu-PF.
Mutsvangwa confirmed there were “dramatic changes in the structure of our state apparatus” to avoid an unconstitutional change of government.
“They (security sector) proved that they are not a joystick for political day-dreamers.
“Ours is not akin to any post-colonial armies that can be commanded from London or from Paris to go to the state house and remove leaders. It does not work like that with our army,” he said.
In January, Mnangagwa retired Zimbabwe Republic Police (ZRP) commissioner General Godwin Matanga, replacing him with Stephen Mutamba.
In the same month, he retired Director General Isaac Moyo from the spy agency, Central Intelligence Organisation (CIO), in came Fulton Mangwanya.
But the biggest change came a week before the March 31 planned protests to remove the president from power.
Zimbabwe National Army (ZNA) commander Lit-Gen Anselem Sanyatwe, 69, was retired from the army to become minister of sports arts and culture.
His replacement was Maj-Gen Emmanuel Matatu (72).
The new-look ZRP, ZNA, and CIO are near complete overhauls compared to when vice-president Chiwenga led the push that removed the late Robert Mugabe in November 2017, ushering in Mnangagwa’s regime.