Having failed to make a single appearance he moved on to Newport County, back to Bradford City and then to Barrow before returning to Carlisle in the 2022–23 season, he would drop into non-league for club Workington in 2023–24 before retiring in February 2024 due to injury.

[4] He made his debut on 19 September in a 2–0 home defeat to Bournemouth,[5] and scored his first goal for the Quakers in the last game of his loan spell, a 2–1 win against Shrewsbury Town on 17 October.

[citation needed] Devitt's loan at Grimsby was extended until the end of the season on 24 March, after scoring three goals in seven appearances.

[14] He had a happier start to the 2010–11 season as he made his competitive first-team debut for Hull City by coming on as a substitute in their first match, a 2–0 victory over Swansea on 7 August 2010.

Devitt was on the substitutes bench but came on to set up a goal for Nick Barmby in a 3–2 loss against Wigan in the third round of a FA Cup.

[21] On 29 December 2012, amidst speculation Devitt would be re-joining Grimsby Town, Mariners boss Rob Scott distanced himself from the transfer by denying he has intentions to sign him despite previously being interested in the player.

[22] On 1 January 2013 Grimsby announced that they had made an enquiry about Devitt, but were waiting on the player and his agent to decide whether or not they were going to ask Hull for a pay-out if the situation was that he was not in the plans of the club.

In his second game back for Town he scored the equaliser in a 2–1 away win at Welling United that sent Grimsby into the quarter finals of the FA Trophy.

[25] Town eventually made it through to the final at Wembley Stadium but were beaten by Wrexham on a penalty shootout after the game ended 1–1; Devitt was an unused substitute.

In the league, Grimsby dropped off the pace and despite leading the Conference for majority of the season they eventually finished fourth and were defeated by Newport County in the play-offs.

[28] After featuring two more successful pre-season trials for Chesterfield against Huddersfield Town (in which he scored)[29] and Nottingham Forest, he signed a six-month deal with the club.

[49] On 30 May 2023, after Carlisle won promotion to the EFL League One, manager Paul Simpson said Devitt would be released when his contract expired.

[51] In February 2024, due to a season ending thigh injury, Devitt announced his retirement as a player to focus on his coaching career.