that creates a domino effect in the other direction

Reading through DEATH DEATH DEATH and trying to replace, for example Mary Jane with Mary, Mary with Susie, but also Ed has to take up some of Mary's role and Mary Jane's role, but Mary needs to not only exist but live until the final act, so she can't be Mary Jane or Ed, and cutting or combining characters is complicated.
that creates a domino effect in the other direction
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