Mr Mthembu  is making a fundamental mistake in thinking that the opposition will benefit from a sucessfull vote of no confidence in Zuma. The opposition will actually benefit the most in 2019  if Zuma is not removed immediately!  The country will be the short term loser but will be better off in the long term if the DA takes over in 2019.  If Zuma is removed now, there is a vague possibilty that an ANC under Ramaphosa might return to  power in 2019.
In this article. Mr Mthembu is admitting that Zuma was and is a massive problem for the ANC  and yet he is expecting the country to put up with it because the ANC cannot resolve it?! Its really crazy.  Recall Zuma before the 8th and appoint
 Ramaphosa or else face the consequences in 2019!