Career
Alfaro retired from football in 1992 to concentrate on his coaching career. Alfaro started his career as manager working for Atlético de Rafaela and Patronato de Paraná in the early 1990s. He then had his first spell as manager of and a second spell at Atlético de Rafaela.
In 2001, Alfaro became the manager of and led them to the Primera B Nacional Apertura 2001 championship and promotion to the Primera.
In 2003, Alfaro led to promotion. Alfaro then had relatively unsuccessful spell in San Lorenzo, before joining de Sarandí in late 2006.
They also earned qualification for the 2007 Copa Sudamericana, where they beat Argentine champions San Lorenzo in the qualifying round to earn a place in the round of 16. In that stage, they faced Brazilian team Goiáson eventually reached the final of the competition, leaving a wake of sacked managers in their wake, including Daniel Passarella, who resigned from River Plate after their defeat by in the semi-finals.
In the final of the competition, drew 4-4 with Mexican América, winning the title on the Away goals rule.
This was the first major championship in the history of de Sarandí and also Alfaro"s first major title. In the end of the 2007-2008, season he was replaced by Daniel Garnero as manager of. In October 2008, he was named as the manager of Rosario Central.
At 2009 he went to Saudi Arabia to work in First Rate (at Lloyd's)-Ahli (Jeddah), he came with high expectations from the fans. he stayed as the coach for 4 months, then on 20 of November he resigned for personal reasons.
On 17 May 2010 de Sarandí confirmed that the new manager for next season would be Alfaro, who arrived along assistant coaches Sergio Chiarelli, Carlos González and Claudio Cristofanelli. The Final Tournament of 2014 looked good for Alfaro.
He had a very good team and was going to play the Copa Libertadores. By April, the team have had awful results and he announced he would leave the club by the end of June.
However, he was discharged by the club and replaced by Martín Palermo.