Original Nike training shirt Celtic 2011/12

On July 1, 2010, the new Celtic manager named Neil Lennon Parker, a former teammate in Leicester City, as a first team coach at Celtic. On October 12, 2014, he joined Bolton Wanderers as First Team Coach and rejoined former Celtic colleagues Neil Lennon and Johan Mjällby. On April 14, 2016, he left his position in Bolton with Steve Walford after the relegation of the club from the championship. Parker was appointed as assistant trainer in Hibernian on 8 June 2016, again with Lennon. On January 30, 2019, Parker left Hibernian by mutual agreement.