Question: What footballer took over Lee Johnsons management position with Barnsley and Oldham Athletic?
Context: Earl Delisser Barrett (born 28 April 1967) is an English former footballer who played in the Football League and Premier League for Manchester City, Chester City, Oldham Athletic, Aston Villa, Everton, Sheffield United and Sheffield Wednesday.  He played mainly at right back though could also adapt to a central defensive role.  He also gained three England caps while playing at Oldham and Aston Villa.  The £1.7m Aston Villa paid for him in February 1992 remains, as of 2014, Oldham Athletic's record transfer receipt. Dean Thomas John Holden (born 15 September 1979) is an English former footballer who is currently assistant head coach at Bristol City.  He was previously manager of Oldham Athletic following the departure of manager Lee Johnson in 2015. Thomas Anthony Peter Bell (30 December 1923 – 21 November 1988) was an English professional footballer.  A left-back, he played in 318 Football League matches for three clubs, most notably for hometown club Oldham Athletic.  Bell features, along with his son Graham, amongst 'The Legends of Oldham Athletic'. Lee David Johnson (born 7 June 1981) is an English former professional footballer who is the Head Coach of Championship club Bristol City.  Johnson is the former manager of Barnsley and Oldham Athletic. Oldham Athletic A.F.C. is an English professional association football club based in Oldham, Greater Manchester.  Oldham Athletic was founded in 1895 and joined the Football League for the 1907–08 season; they have been a member ever since, apart from two seasons in the Premier League between 1992 and 1994.  The following is a list of every Oldham Athletic player who appeared in the Football League and/or Premier League for them. Elijah Round (born January 1882) was an English footballer.  His regular position was as a goalkeeper.  He was born in Stoke-on-Trent.  He played for Manchester United, Oldham Athletic, and Barnsley. Jean-Yves M'voto Owono (born 6 September 1988) is a French footballer, born in Paris, who plays as a defender for Scottish Championship side Dunfermline Athletic.  He has also appeared for English teams Oldham Athletic, Barnsley, Leyton Orient, Polish team Zawisza Bydgoszcz and Scottish side Raith Rovers. Chaddy the Owl is the official mascot of Oldham Athletic—an association football club in Oldham, in Greater Manchester, England.  He was chosen as the official mascot of Oldham Athletic to reflect Oldham's historic heraldry and heritage, as the owl is a prominent feature on the Oldham coat of arms.  He won the Football League's mascots' race in 2002 and 2003, after finishing in third place in 2001.  Chaddy was crowned the overall winner of the 2010 Mascot Olympics in Milton Keynes after claiming first place in the football dash, the assault course and the penalty shootout — during which he was the only mascot to save all 10 shots. Edward "Ted" Goodier (15 October 1902 – 4 November 1967) was an English professional footballer and football manager.  Born in Farnworth, Lancashire, he played as a wing half for Huddersfield Town, Lancaster Town, Oldham Athletic, QPR, Watford, Crewe Alexandra and Rochdale.  He was appointed player-manager at Rochdale in 1938, and continued in that capacity during the Second World War until taking over as caretaker manager of Birmingham City, a post which he held for six months before returning to Rochdale.  He went on to manage Wigan Athletic and Oldham Athletic.  He died in his native Farnworth at the age of 65. Bill Blackshaw (born 6 September 1920 - died 1994) was an English, retired, professional footballer who played as a winger, in the Football League for Manchester City, Oldham Athletic, Crystal Palace and Rochdale.  His first professional club was Manchester City but after only three appearances his career was interrupted by the Second World War.  When football resumed thereafter, he moved on to play for Oldham Athletic and subsequently Crystal Palace and Rochdale.  He later moved into non-league football with Stalybridge Celtic.
Answer: Dean Thomas John Holden