FC Kaiserslautern, and Hamburger SV, with the latter being the club where he spent the most extended period of his career, spanning over eight and a half years.

Upon concluding his playing tenure, Hollerbach transitioned into coaching, initially undertaking roles with VfL 93 Hamburg and VfB Lübeck.

Following this period, Hollerbach assumed the position of head coach for Würzburger Kickers from 2014 to 2017, successfully guiding them from the Regionalliga Bayern to the 2.

[9] However, his tenure was cut short on 28 February 2007, after two consecutive defeats raised doubts about their promotion aspirations, leading to his dismissal.

[10] In June 2007, Hollerbach assumed the role of assistant coach alongside Felix Magath at Bundesliga club VfL Wolfsburg.

[11] In a dual capacity, he also took charge of the reserve team competing in the Regionalliga Nord in July 2008,[12] before leaving the position to Lorenz-Günther Köstner from January 2009.

[15] However, following Felix Magath's dismissal on 16 March 2011, Hollerbach, along with his coaching colleague Werner Leuthard, terminated their contracts with Schalke 04 a day later.

[24] Following a winless streak of 17 games in his final stretch with Würzburger Kickers, Hollerbach faced a similar fate with Hamburger SV, failing to secure a victory in any of his seven matches in charge (three draws, four losses), thereby establishing a new negative record in German professional football.

[25] On 12 March 2018, merely seven weeks after his appointment, Hollerbach was relieved of his duties as HSV found themselves in 17th place, trailing seven points behind the relegation play-off spot, with eight matchdays remaining in the season.

[27] Ahead of the 2019–20 season, Hollerbach assumed the managerial role at Belgian top-flight club Mouscron, succeeding Bernd Storck.

Despite securing the license for the 2020–21 season through the intervention of the Belgian Court of Arbitration for Sport, Mouscron encountered financial constraints, resulting in a reduction of Hollerbach's salary.

[33][34] The team finished the season in ninth place, narrowly missing out on the UEFA Europa Conference League play-offs due to a less favorable goal difference.