Wiktionary
a. Performed by two or more people or groups working alternately.
Wikipedia
"Tag-Team" is the fifth episode of the first season of the 1974 American television series Land of the Lost. Written by Norman Spinrad and directed by Dennis Steinmetz, it first aired in the United States on October 5, 1974 on NBC.
Usage examples of "tag-team".
The four passed bagpipers, poets, boxers, philosophers discoursing in tag-teams, tightwire fiddlers, clowns, caricaturists, and such.
I have watched a lot of bad acts in my time, from tag-team pro wrestling in Flomaton, Alabama, to the Roller Derby on Oakland TV and intramural softball tournaments at Scott Air Force Base in Illinois -- but I'm damned if I can remember anything as insanely fucking dull as that Third Annual International Cozumel Fishing Tournament.