He led his team to the group stages of the Champions League 2009–10 season and to the group stages of the 2010–11 Europa League season.

His team reached their zenith by beating Sampdoria 2–0 at the Puskás Ferenc Stadium in 2010.

During the management of András Herczeg Debrecen reached their zenith by qualifying for the group stages of the 2009–10 UEFA Champions League and in the following year the group stages of the 2010–11 Europa League.

After the resignation of Elemér Kondás, Herceg accepted the appointment of the club to manage Debrecen against Gyirmót FC Győr on the third match day of the 2016–17 Nemzeti Bajnokság I season.

[1][2] On 8 June 2017, Debreceni VSC appointed Herczeg as the manager of the club.