Why don't I think that's a simple oversight?

Or it could be a simple oversight on the part of the writers.

Perhaps this is a simple oversight by a copyist.

This simple tactical oversight leads to loss of a piece.

But whether out of deference or a simple oversight, he did not, as their session ended, hand back their documents.

But because of legal and contractual problems, as well as simple oversight, much remains in the vaults.

"I'm, ah, certain they were, er, simple oversights," he continued.

It was a simple oversight on my part.

But an autopsy was marred by a simple oversight that now looms large.

A simple oversight could lead to a wreck, and this did happen.