Smith was reportedly in the running for the position alongside suspended interim director of cricket, Corrie van Zyl and former selector Hussein Manack.
Opener Harris averaged 9.66 against England in the last three tests of the Ashes and has been jettisoned in favour of Queensland’s Joe Burns for the series, which starts in Brisbane on 21 November.
Schalk Brits retired in May 2018 after leaving Saracens but was lured back by Springboks coach Rassie Erasmus and helped them lift the Rugby World Cup in Japan this month, ending his international career with 15 caps over an 11-year period.
Captain Siya Kolisi, wingers Cheslin Kolbe and Makazole Mapimpi were among players to slip into their speedos and post pictures in their underwear on social media after being screened, in response to the now viral #FafChallenge.
The two nations will be meeting for the fourth time this year, with South Africa having had won one during the Quad Series and England winning twice during the 2019 Netball World Cup.
The 70-year-old was recently linked with the Bayern Munich job following the sacking of Niko Kovac but said that while he was approached he was never a candidate for the job.