Are they....can they be considered the same thing?
Edo tensei is basically a jutsu to bring/control the dead.
Well the sharingan can do the exact same thing, example, when Itachi controlled that fodder to fight naruto (also adding a transformation to make it look like him).
Well by adding transformation and genjutsu, copy idk naruto's jutsu (like kakashi did) and shadow clone jutsu....isn't that basically edo tensei depending on how many jutsu he copies?
I know it sounds a bit ridculous but that fodder was dead and itachi used his body to bring him back and everything.