as, setting up two goals, in a 4–1 win over Ipswich Town. Simpson scored his fourth goal for the club on 20 November 2011, in a 2–1 loss against Bristol City. After making sixteen appearances and scoring four times in the first half of the season, Simpson returned to his parent club. However, Simpson spent the rest of the season out of the first team, as he remained on the sidelines. In the 2012–13 season, new Manager Steve Bruce was impressed with Simpson's performance after scoring four goals in two friendly matches, including a hat-trick, with a 5–0 win over Winterton Rangers. With this performance, Bruce gave him a first team chance and did well when he scored the only goal in the game, with a win against Brighton & Hove Albion in the opening game of the season. He scored again in the second round of the League Cup, in a 3–2 loss against Doncaster Rovers, followed up by scoring three goals in five matches throughout September against Millwall, Leicester City and Peterborough United. After scoring against Wolverhampton Wanderers on 6 November 2012, Simpson played a vital two weeks later when he set up two goals, in a 3–2 win over Birmingham City. Despite suffering goal drought for the next four months, Simpson continued to remain in the first team. It wasn't until on 5 March 2013 when he scored again, in a 4–2 loss against Crystal Palace. After helping the club reach the Premier League, Simpson went on to score seven goals in forty-seven appearances in all competitions. At the end of the 2012–13 season, he was released despite keen on earning a new contract. Buriram United On 29 September 2013, he signed a two-year contract for Thailand's Buriram United which reportedly earned him £40,000 a month. On 1 February 2014 he scored his first goal in a Buriram United shirt during a 1–0 Kor Royal Cup win over Muangthong United in Suphanburi. Simpson's contract with Buriram was terminated by mutual consent in the first half of the season. He later said that, despite the language issues, humidity, and separation from his family, he did not regret the move to Thailand. Leyton Orient On 31 July 2014, Simpson signed a three-year deal with League One club Leyton Orient. Upon joining the club, he cited his family as the main factor for his return to England. He was given