While Carson Daly agrees “If it ain’t broke, don’t fix it,” he said you still want the show to be able to evolve.
American Idol found huge success in its early years and held strong to the different judging styles that Simon Cowell, Paula Abdul and Randy Jackson brought to the table, and Fox didn’t even attempt to shake things up during its peak years.
By making the coaching swaps part of the standard procedure, The Voice has been able to keep the panel fresh and experiment to find the right chemistry among the four.
Sure, The Voice coaches have their rivalries and their smack talk, but that competitive fire is (usually) all in good fun, and it makes the show more entertaining for the audience, and probably the coaches too.