Renard began his coaching career with SC Draguignan in 1999, leaving in 2001. He was Assistant at Chinese side Shanghai Cosco with headcoach Claude Le Roy from 2002 to 2003, and managed English side Cambridge United in 2004. He became manager of AS Cherbourg in 2005, leaving them in 2007. He next became Assistant to Claude Le Roy for the Ghana national side. He was appointed manager of the Zambia national team in May 2008. At the 2010 Africa Cup of Nations, he led Zambia to the quarter final stage of the tournament for the first time in 14 years. Renard left his duties as Zambia manager in early April 2010 with only two months remaining on his contract. Two days later he agreed to become manager of Angola. He resigned from his position as Angola manager in early October 2010, and was replaced by Zeca Amaral.
Following the dismissal of coach Dario Bonetti on 10 October 2011, the Football Association of Zambia offered him a coaching position. On 22 October 2011, it was announced that he would return for a second stint as coach of Zambia on a one-year contract. He led the team to their first victory in the African Cup Of Nations in 2012, beating favourites Senegal in the group stages and Ghana and Côte d'Ivoire in the semi-final and final respectively. The win was dedicated to the 18 players who perished in April 1993, after a plane carrying the squad crashed just miles from the site of the 2012 final in Gabon.
In May 2012, Chisimba Kambwili, the Zambian sports minister, announced he expected Renard to sign a new contract by the end of the month.
After Zambia were eliminated from the group stages of the 2013 African Cup of Nations, Renard said that it was his fault. He later criticised CAF for not allowing Zambia, as the 2012 winners of the AFCON, the chance to compete at the 2013 Confederations Cup.
Renard was released from his contract by the Football Association of Zambia in October 2013, in preparation for a possible future role with French club FC Sochaux.