Nagelsmann was appointed head coach of 1899 Hoffenheim on 27 October 2015. He was expected to begin his tenure at the start of the 2016–17 season. He was given a three-year contract. At the time of his appointment, Nagelsmann was 28, and the youngest coach in Bundesliga history. He was to be the successor for Huub Stevens, who had replaced Markus Gisdol the previous day. On 10 February 2016, Stevens resigned as head coach due to health problems, and Nagelsmann's term as head coach was introduced by the Hoffenheim board a day later.