As a player As a player, Forte played for FC Brüttisellen-Dietlikon, FC Red Star Zürich and SC Kriens.
As a manager In 2001, Forte was a player-coach at
FC Red Star Zürich. In 2006, he moved to
FC Wil 1900. After coaching FC Wil 1900 for two years, he signed for
FC St. Gallen. He was fired on 1 March 2011. One year later, on 16 April 2012, he signed as the new manager of
Grasshopper Club Zürich, whom he led to
2012–13 Swiss Cup victory. It was the club's first title in ten years. From July 2013 until August 2015 he was the head coach of
BSC Young Boys. On 13 May 2016 he signed as the head coach of
FC Zürich. On 10 August 2021, he was hired by
Yverdon-Sport. Despite a modest league performance, which saw his team end eight out of ten teams in the
2021–22 Swiss Challenge League, he led his team to the semi-final of the
2021–22 Swiss Cup. After one season with Yverdon, he was appointed by
Arminia Bielefeld, on 4 June 2022. On 17 August 2022, Forte was sacked after four losses in the new season. On 25 April 2023, he returned to the
Swiss Challenge League taking over
Neuchâtel Xamax, who were sitting in last place. On 24 December 2024, he departed Xamax to take up the coaching job at
FC Winterthur. Like Xamax before, Winterthur were in last place of the
Swiss Super League. He ended up keeping Winterthur in the Swiss Super League, finishing 10th at the end of the
2024–25 season, one point ahead of the relegation play-off spot. However, he was terminated on 20 October 2025, after achieving just two points in the first nine games of the
2025–26 season. ==Honours==