In July 2014, Artell became
academy operations manager at former club
Crewe Alexandra while still playing for
Bala Town.
Crewe Alexandra On 8 January 2017, Artell was appointed first-team manager by Crewe Alexandra, replacing
Steve Davis in the role. One of his first moves was to appoint fellow ex-Crewe player and former Bala Town teammate
Kenny Lunt as his assistant manager. On 28 February, with his side facing the possibility of relegation from
League Two following a 4–0 defeat at
Hartlepool United, Artell publicly warned his players that "relegation means oblivion... they'll end up in the Conference North on £200 a week with a job as a milkman." Crewe promptly won four of their five games in March to climb towards mid-table safety, a run of form that earned Artell a nomination for
EFL League Two Manager of the Month. The
Railwaymen ended the
2016–17 campaign in 17th place. Artell released six first-team players in the summer, warning the remaining out-of-contract players to sign their new contracts quickly before they too were released, but stated that "we all had a say. It's not a dictatorship. I'm not
Idi Amin or
Pol Pot... it's evolution, not revolution, but we won't be happy with 17th in the table again next season." Two months later, he publicly criticised his team's game management after losing two successive games from winning positions – including a 4–3 defeat at
Swindon Town in which Artell's side had been 3–1 up. On 20 February 2018, Crewe were beaten 2–1 by
Exeter City at
Gresty Road despite taking the lead with two minutes of normal time remaining; Artell again publicly criticised his players' professionalism, saying: "That sums us up. Played well, better team, in the lead, snatched defeat from the jaws of victory. That's been us over the course of the season." Following the defeat to Exeter, Crewe's form improved, going onto claim 10 points from a possible 18 to lift them above the 40-point mark by 20 March. On 5 May 2018, with the
Railwaymen's League Two safety already secured, Artell selected a
starting lineup consisting entirely of academy graduates for their final game of the season at home to
Cheltenham Town; Crewe won the game 2–1, earning Artell the EFL Manager of the Week award for his youthful side's victory. Having ended the previous season by claiming the award, Artell won the first EFL Manager of the Week award of the season after his side began the
2018–19 campaign with a 6–0 opening day thumping of his former club
Morecambe on 4 August 2018. Despite this, Crewe went on to struggle for the majority of the first half of the season. However, they showed signs of improvement in January 2019 after recording 10 points from a possible 15, three of which came in an impressive 1–0 win at promotion-chasing
Milton Keynes Dons, helping to earn Artell a nomination for Manager of the Month. He admitted he had to come up with better "coping mechanisms" after receiving four yellow cards and one
sending off during the season. Reflecting on his team's progress, hArtellsclaimedthat it was a '"ritical statistic'"that his side failed to beat any of the bottom 111sides away from home. Hoping to improve on their 12th-place finish, Artell released four players, while centre-back
George Ray rejected the club's offer of a new contract.
Promotion After starting the
2019–20 season with four wins in six games, Artell was again nominated for the EFL League Two Manager of the Month award. Crewe were top of the table on 15 March when the EFL was suspended due to the
COVID-19 pandemic in England. Artell said he was "100% confident" that the season would not be scrapped, stating that "The integrity of each competition is important and we have to play the games that are left, whenever that is". He was proved wrong. Clubs voted to end the campaign without playing the remaining fixtures, and although Crewe were promoted, Swindon Town won the league title with a higher points per game. Nonetheless, Artell was selected as League Two Manager of the Year in the
League Managers Association Awards, the first Crewe manager to win such an annual award. In
2020–21, Crewe Alexandra underwent a difficult period off the pitch following publication of the Sheldon report into a
sexual abuse scandal relating to multiple offender and former
youth team coach
Barry Bennell. Artell kept the club performing well on the pitch, signing five new players on free transfers –
Offrande Zanzala,
Mikael Mandron,
Donervon Daniels,
Omar Beckles and
Luke Murphy – and cashing in on
Perry Ng and
Harry Pickering. Crewe went on to finish 12th in League One at the end of the season – the club's highest finish since relegation from the Championship in
2005–06.
Relegation During the summer of 2021, midfielders
Charlie Kirk and
Ryan Wintle left;
Owen Dale was keen to move and eventually went on loan, and
Tom Lowery became involved in a protracted contract dispute. and Artell had to sign several less experienced players on free transfers and loan deals. Crewe won just one of their first 15 league games and were bottom of the table on 2 November, six points from safety after a draw against fellow strugglers
Doncaster Rovers. After Crewe were knocked out of the FA Cup in the first round by Swindon Town, Artell brought in former team-mate
Alex Neil as a "fresh pair of eyes" to review Crewe's first-team. However, Crewe continued to struggle, losing seven consecutive games in early 2022 before Artell's 100th victory as manager, a 2–1 win at
Cheltenham Town, briefly raised his hopes of an unlikely escape from relegation. Further defeats followed, however, and in March Artell reshuffled his management team, appointing
Alex Morris as assistant manager, with Lunt becoming player development manager. In "one of the worst" seasons in Crewe's modern history, the club was relegated with four games still to play after a 2–0 defeat at Doncaster on 9 April 2022. Two days later, Crewe replaced Artell with Alex Morris. Artell subsequently said he was "unquestionably proud" to be "the only person who has achieved promotion as both a player and manager at Crewe," though it ultimately proved exhausting. Reflecting on his managerial spell at Crewe, Artell said: :"I was doing coaching, recruitment,
scouting, loan strategies,
transfer strategies, individual development and contract negotiations. Everything you can think of, really, on top of being the manager. I was doing all I could do to look after everyone. My assistant, my coaches, the analyst, the academy manager, the head of coaching, all the way down to the head of the pre-academy; even the tea lady! ... I loved having all that responsibility, and I learned so much from being able to do so much. But, in truth, by the end, I was out of puff."
Grimsby Town On 27 November 2023, Artell was appointed head coach of
EFL League Two club
Grimsby Town on a contract until the end of the 2025–26 season, replacing former
Rotherham United teammate
Paul Hurst in the role. His first game in charge was a 1–1 draw at
Milton Keynes Dons on 28 November, with his first victory coming on 9 December; a 2–1 victory against his former side
Crewe Alexandra in his third game in charge. The
2023–24 campaign saw the Mariners finish 21st in League Two, with Artell's side securing safety in their penultimate game. In the
2024–25 campaign, his first full season in charge of the club, Artell oversaw a significant improvement at Grimsby. In December 2024, after leading his side to four wins out of six, he was nominated for
League Two Manager of the Month, ultimately missing out to
Walsall's
Mat Sadler. The
Mariners narrowly missed out on a play–off place following a 1–0 defeat to
AFC Wimbledon in their final game of the season. Grimsby finished the season ninth in League Two, 12 places higher than their final position the previous season. On 7 July 2025, Artell signed a new contract with Grimsby that would see him remain at the club until the end of the 2027–28 season. He said, "I’m absolutely delighted on a personal level. I’m grateful to the owners for showing faith in the work we’re doing. We’ve made great progress, and I hope we can continue this positive trajectory into the new season and beyond." On 27 August 2025, Grimsby defeated
Premier League giants
Manchester United at
Blundell Park in the second round of the
EFL Cup. Artell's side were 2–0 up within the first 30 minutes, but were pegged back to a 2–2 draw following two goals late in the second half from the visitors. Grimsby eventually won a marathon penalty shootout 12–11 to record a victory lauded as one of the biggest cup upsets in recent history. They followed the victory up with a 1–0 win at
Championship side
Sheffield Wednesday in the third round on 16 September, before exiting the competition in the following round with a comprehensive 5–0 defeat to Premier League side
Brentford on 28 October. In January 2026, after an impressive month in which Grimsby won four of their five league games, a run during which they kept four successive clean sheets, Artell was again nominated for the League Two Manager of the Month award, but lost out to
Cambridge United boss
Neil Harris. On 15 February 2026, Artell's side were narrowly knocked out of the
FA Cup in the fourth round of the competition with a 1–0 defeat to Premier League strugglers
Wolverhampton Wanderers at Blundell Park. He was nominated for March's League Two Manager of the Month award following ten points collected from five games. ==Managerial style==