De Sá began his coaching career in 2001 at
Bidvest Wits, and would remain in charge for four years. De Sá rejoined
The Students in June 2007 after an absence of two years which he spent coaching
Engen Santos. In September 2012, De Sá was appointed as the coach for
Orlando Pirates. He was chosen as
PSL Coach of the Season after the 2002–03 season. On 31 January 2014, De Sá resigned as coach of
Orlando Pirates. Da Sá was appointed
Ajax Cape Town coach in 2014, but stepped down from the position after a winless start to the 2016/17 PSL season. In January 2017, De Sá was announced as
Maritzburg United's manager, but he parted ways with the club in March of the same year. On 8 September 2017, De Sá was named as the head coach of
Platinum Stars after the departure of British coach
Peter Butler. He also acted as Bafana's goalkeeping coach during
Carlos Queiroz's reign and, in September 2021, was recruited by Queiroz to join him as Assistant Coach to the
Egyptian national football team. He continued with Queiroz as assistant coach of
Iran for the
2022 FIFA World Cup. In early 2023, De Sá was named as a coach to the
Qatari national team, once again working alongside Queiroz. The three-and-a-half-year deal would see De Sá working with the team until at least July 2026. In 2025 he was a coach at
Cape Town City, before becoming a coach with the
Oman national team. ==Honours==