Career
From 1992 until 1996, Grillo served as the Sharks" general manager. Grillo became involved with professional ice hockey with the New York Rangers and Minnesota North Stars in the 1980s as a scout. He eventually became the director of player personnel.
He was named Vice-president of player personnel, and was responsible for player acquisitions and trades, starting in 1992, after General Motors Jack Ferreira was dismissed.
He was named executive vice-president in 1995 and held the title until 1996 when Dean Lombardi was hired as General Manager of the Sharks. He held a position as a scout with the Pittsburgh Penguins from 2001 to 2011.
He has been running the Minnesota Hockey Camps ice hockey development center in Nisswa, Minnesota for over 35 years.