The other three coaches include India's first foreign coach Gerhard Rach, Ezequiel Paulon and Jacques Brinkman.
"It is good that Hero Hockey India League is able to draw the attention of the best hockey coaches in the world who are willing to be part of this prestigious league. The options of these foreign coaches are open for the franchises who wish to hire them," Hockey India Secretary General and Hero Hockey India League Chairman Narinder Batra said in a release.
He also worked as head coach of the Australian National team from 1997-2000. In 2004, Walsh had worked as head coach of the Netherlands hockey team that won Silver medal at the Athens Olympic Games in the same year. He is an International Hockey Federation (FIH) Master Coach.
Germany's Rach has worked previously with the Egypt national team. In 2009, Rach further extended his experience in sub-continent as he worked as Coaching Director in Bangladesh for two years. He has also worked as the High Performance Consultant with a Viennese (Australian) Club for two years.
Dutchman Brinkman has coached top hockey clubs including Amsterdam Hockey Club (1998), SCHC (2004-2007 & 2010) and Laren (2008-2009) and is currently working with Zwolle Hockey Club in The Netherlands since 2010 as talent coach. As a player he played 337 International matches for The Netherlands.