It is very possible that much of it is rye.
You can see a green color to yellow color outline where the driveway was. So whatever was done as far as adding soil and grass seed, it was done poorly. I slitseeded for 2 years, each fall and it didn't take well. Not sure if client didn't water or just poor soil or both. Thats why I like your idea of sod.
I like the idea of turning this over to someone else to "fix".
They have an underground sprinkler system also.
Obama is so bad, Kenyans are accusing him of being born in the USA.