Didymus Mutasa says an evil clique within Zanu-PF has robbed Mugabe of his legacy as a unifier.
Scores of families have been chased away from Manzou estate to make way for a game park.
The order will be seen as part of a political tussle in the country’s capital.
The new ministers are due to be sworn in at State House in Harare today.
Zanu-PF's central committee has been drastically purged of all known supporters of Joice Mujuru.
Joice Mujuru was fired from the party because of an alleged plot to topple Robert Mugabe.