Requiring each justice to write an opinion would require a constitutional amendment, fellows.
The point being - it is petty, and quite frankly an insult to the dignity of the Justices and more importantly the dignity and indepedence of the institution, to attempt to micro-manage the court in the way you are doing.
Lets all step back and face the facts: The attemps to pack the court
failed. It would be ridiculous to make a constitutional amendment to give us a writing assignment - your oversight is confined to confirmation and impeachment, not to running the court.