squad rotation
noun [ U ] uk/ˌskwɒd rəʊˈteɪ.ʃən/ us/ˌskwɑːd roʊˈteɪ.ʃən/
（足球或橄榄球）轮换首发
in sports such as football or rugby, the practice of regularly replacing players on a team with other players from the squad (= all the available players)
Benitez defended his squad rotation system, saying key players need to be rested. 伯尼特兹为他的球员轮换首发系统进行辩护，表示主力球员需要休息。