Oldham Athletic Following the departure of
Iain Dowie to
Crystal Palace in late 2003, Sheridan took over the coaching of the Oldham first team, along with fellow-veteran
David Eyres, before they were both replaced by
Brian Talbot. On 1 June 2006, Talbot's successor,
Ronnie Moore, was himself sacked and Sheridan stepped in to fill in the manager's position on a permanent basis. On 7 December 2006, Sheridan was named
Football League One Manager of the Month. He guided Oldham to sixth place in
League One in
2006–07, and their promotion challenge was ended in the
play-off semi-finals by eventual winners
Blackpool. They finished eighth the
following season, but had made a far more convincing bid for promotion during the
2008–09 season. On 9 March 2009, reports surfaced of a fight involving players and Sheridan at a racetrack, which Sheridan described as being "overblown". Sheridan remained with the club for the next game, a 6–2 defeat at
Milton Keynes Dons. The following day, Sheridan agreed to leave the club after a discussion with Oldham managing director Simon Corney. He was immediately replaced with former Oldham manager
Joe Royle. Sheridan later admitted that a series of poor results had led to his departure from Oldham.
Chesterfield On 9 June 2009, Sheridan was named as manager of
Chesterfield in
League Two. Signing a three-year contract with the club, he brought assistant
Tommy Wright and goalkeeper
Mark Crossley along with him. Sheridan's second season with the club saw him bringing in his own players, and on 22 April 2011 a draw between
Torquay United and
Wycombe Wanderers meant Chesterfield were promoted without even kicking a ball in League Two. On 7 May 2011, Chesterfield were confirmed as champions of League Two after a 3–1 victory over play-off contenders
Gillingham in their last match of the season. Sheridan's side won the
Football League Trophy the following season but the club's league campaign ended in relegation back to League Two. On 28 August 2012, it was announced that Sheridan had been relieved of his duties after the team gained two points from the opening three league games of the 2012–13 season.
Plymouth Argyle Sheridan was appointed manager of
Plymouth Argyle on 6 January 2013. "There have been one or two other jobs while I've been out of work that I didn't go for. But as soon as Plymouth came up, a lot of people told me how good it is," said Sheridan, who signed a contract until the end of the 2012–13 season. "I have been in
Yorkshire for the majority of my career and it's a change for me. It's a big upheaval for me to come to
Plymouth, but I'm really excited." He was named
Football League Two Manager of the Month for March after Argyle won four and drew one of their six matches. By the end of the season, the club had won eight and drawn four of Sheridan's 19 games in charge and avoided relegation from the Football League. Sheridan signed a new three-year contract with the club in May. "Obviously, now the hard work starts. I keep saying it – I'm ready to get this club pushed up the league and that's what I am going to try to do," he said. Sheridan improved the fortunes of Plymouth Argyle in 2013–14, leading the club to a 10th-placed finish in
League Two, the first time the club has finished higher than 21st in league competition since 2007–08. However, the season ended on a negative note, as following a 2–1 victory over Sheridan's former club
Chesterfield which put the Pilgrims into the play off positions, the team then self capitulated and only won one of the final nine games. This led to Sheridan deciding against renewing the contracts of seven professionals, including former player of the year
Maxime Blanchard and Plymouth-born midfielder
Luke Young, with promotion the target for 2014–15. Sheridan's Plymouth finished in seventh place in 2014–15, securing a place in the League Two playoffs following a 2–0 win at Shrewsbury Town on the final day of the regular season. However they were defeated by fourth placed
Wycombe Wanderers over the two-legged semi final, with the Pilgrims succumbing to a 5–3 defeat on aggregate. On 28 May 2015, Plymouth announced that Sheridan had left the club by mutual consent after expressing a desire to return to the north of England for family reasons.
Newport County On 2 October 2015, Sheridan was confirmed as the new manager of
Newport County replacing
Terry Butcher who had been sacked the previous day. Sheridan took over the role with Newport bottom of League Two, having gained five points from the first ten matches of the
2015–16 season. Sheridan managed to secure only one point from his first three games, but then took the side on a ten-game unbeaten run and led the side to an FA Cup 3rd round appearance against
EFL Championship club Blackburn Rovers in January 2016. He would finish the season with a record of five wins, seven draws, and five defeats, producing 20 of a possible 51 points. He left the club in January 2016 to join Oldham for a fourth spell. His departure nearly led to a complaint by Newport County, who were unhappy at images which emerged on social media of Sheridan allegedly meeting with Oldham staff prior to Newport being approached. Club director Gavin Foxall wished Sheridan "all the best" but noted that "the manner of his departure has not been right". Oldham officially maintained that they had contacted Newport prior to the meeting. Sheridan left the club with them just one point above the relegation zone with just 22 points from 24 games.
Third spell at Oldham Athletic On 12 January 2017, Sheridan became manager of
Oldham Athletic for a third time, he replaced
Steve Robinson at the
League One club. On 25 September 2017 he left Oldham by mutual consent.
Fleetwood Town On 22 February 2018, Sheridan was appointed manager of
League One club
Fleetwood Town until the end of the 2017–18 season, replacing
Uwe Rosler. He joined with the club 20th in the league having lost their last eight games in all competitions, but successfully guided them to safety finishing in 14th place.
Carlisle United In June 2018, Sheridan was appointed manager of Carlisle United replacing
Keith Curle. He resigned on 4 January 2019.
Second spell at Chesterfield On 9 January 2019, Sheridan was reappointed as manager of
National League club
Chesterfield, returning to the club he left in August 2012. He joined with Chesterfield 22nd in the fifth tier having won just one of their last twenty-five league games. On 2 January 2020, following a 3–0 defeat at Solihull Moors that left Chesterfield in 22nd place with only 17 games of the season left, Sheridan's contract was terminated.
Waterford In July 2020 Sheridan was named manager of
League of Ireland Premier Division club
Waterford. He left the role after just eight games in charge of the team to return to England.
Wigan Athletic Sheridan was appointed manager of
League One club
Wigan Athletic by the
administrators on 11 September 2020. He only lasted fifteen games in charge before making another move.
Swindon Town On 11 November 2020, Sheridan was approached by
Swindon Town to become their next manager following the departure of
Richie Wellens. On 13 November 2020, he signed a contract with the Wiltshire club until the end of the season, but left on 17 April 2021.
Fourth spell at Oldham Athletic On 22 January 2022, Sheridan returned to Oldham Athletic as head coach with the club bottom of the Football League. He could not halt the slide towards the National League. Oldham were relegated from the English Football League following a 2-1 home defeat by
Salford City on 23 April 2022, a match interrupted by an on-pitch protest by fans against the club's owners. Sheridan said he would stay at Oldham with the aim of an immediate return to the English Football League in the next season. On 15 September 2022 it was announced that he would step aside after their match on 17 September. ==Career statistics==