Trueman worked as a youth coach at FC Halifax Town. He later worked for Bradford City as under-18 team manager, before being appointed caretaker manager alongside Conor Sellars in December 2020. Their first match was a 1–1 draw away at Crawley Town on 15 December 2020, the club's first point in six games. The club's CEO Ryan Sparks said that Trueman and Sellars had the board's full support whilst the search for a permanent manager was ongoing. Their second match was a 1–0 victory at home against Cambridge United on 19 December 2020, the club's first league win in eight matches. After the result, Truman and Sellars had a celebratory beer, and then spent seven to eight hours the next day planning for the next game. Trueman later said he intended to move into management after his caretaker spell ended. After leading the club to their third straight win, he downplayed his chances of being appointed permanent manager, but said he was keen to maintain his position as caretaker manager for as long as possible.
