rotation system; squad rotation
In soccer, a system where the starting lineup is changed between matches to manage player fatigue and give opportunities to squad members.
This team uses a rotation system, so the starting lineup changes every match.
To cope with the congested fixture list, the manager introduced squad rotation.
From English 'turnover' plus 制 (system). The term 'turnover' in sports contexts can refer to changing possession or personnel; here it specifically denotes rotating players in the starting lineup.