Analysis

The interviews were audio recorded. Afterward, since the goal of expert interviews was to collect objective information, the interviews were transcribed using the following procedures (Blöbaum et al., 2014):

A qualitative content analysis according to Mayring was conducted on the basis of the transcripts (Mayring, 2022). This approach integrates quantitative and qualitative analysis methods. First, deductive categories are built according to the topics of the interview (e.g. goals of rest defense). Next, as the largest unit of analysis, the answer to a question was determined. Afterwards, inductive subcategories were formed based on the analysis units and according to the deductive categories. In the end, all analysis steps were summarized in a reduction table including the number of the interview, page, line, question, category (deductive), and subcategory (inductive) (please see Appendix 2). This table was then used to count the frequencies of a certain subcategories in each category (see column quantity in Table 1).

Results of expert interviews.

(in harmless situation (e.g. opposing half))

* player line in front of the last defending line, e.g. midfielder-line