Early career He began his managerial career in 2007 with the
Giovanissimi Nazionale of Filadelfia Paradiso, and led them to a regional title. The following year, he moved to Canavese, and achieved qualification for the knockout phase of the national championship in the same age group. In 2009, he returned to
Torino as the manager of the
Allievi Nazionali, and in 2012, he became the manager of the
Primavera squad. In the 2013–14 season, his squad finished as runners-up in the
Campionato Nazionale Primavera, after losing the final 4–3 on penalties to
Chievo. The following season, he led Torino to their ninth Primavera title, and their first since the 1991–92 season, after defeating
Lazio on penalties. In 2015, he also won the
Supercoppa Primavera against
Lazio.
Pro Vercelli On 8 June 2016, he became the new manager of
Pro Vercelli in
Serie B, with whom he signed a two-year contract. In his first season at Vercelli, he achieved safety from relegation in the penultimate round of the season. On 14 June 2017, he mutually agreed to end his contract with Pro Vercelli.
Frosinone On 14 June 2017, he was appointed coach of
Frosinone. After missing on automatic promotion to
Parma on the final matchday of the 2017–18 Serie B season, he won the promotion playoffs, defeating
Palermo in a two-legged final, thus bringing back Frosinone to Serie A after a two-year absence. He was sacked on 19 December 2018.
Torino On 4 February 2020, Longo signed with his former club
Torino. He guided the club until the end of the club's Serie A campaign, and was not confirmed for the next season.
Alessandria On 22 January 2021, Longo accepted the manager's job at
Serie C club
Alessandria, another former team of his as a player, signing a 2.5-year contract. Under his tenure, he guided Alessandria to second place in the Girone A group, then winning the national playoff phase after defeating
Padova on penalties in a two-legged final and ensuring the
Grigi a Serie B spot for the first time in 45 years. Alessandria was relegated back to
Serie C at the end of the 2021–22 season; on 29 July 2022, Longo mutually rescinded his contract with the club.
Como On 20 September 2022, Longo signed a two-year contract with Serie B club
Como. He was sacked on 13 November 2023.
Bari On 19 June 2024, Longo was announced as the new head coach of
Bari, signing a contract until 30 June 2026 with the Serie B club. After a mid-table finish, Longo departed Bari by the end of the 2024–25 season. ==Managerial statistics==