I don't really know all of the criteria on how a National Champion is crowned, but I know we've had split champions before. My question is, what in the heck happens if LSU loses the NCG?

You'd have some 1 loss teams, and of that group LSU would have the best resume by far.

Alabama would have a home loss to LSU.
Oklahoma State would have a road loss to Iowa State.
LSU would have a 'neutral' site loss to one of them, but would also have wins over Alabama, Oregon, West Virginia, Arkansas, and Georgia.

Maybe I'm overthinking it, but it just seems messed up.