@dabeaz that's a great choice, I think you'll enjoy it! My wife did neuroscience to AP {Bio, Psych} and has had a lot of good experiences along with the annoyances (admins) and letdowns (kids who could but don't yet get why doing well matters).
She did an alt route program here in DC where a high school could hire her full-time as soon as she was enrolled in night school. Busy but not too bad–the proctored test was more stressful since she had to refresh on areas outside of her specialization.
@dabeaz She had started an alternative route program in New Haven when she was souring on academia during her postdoc (in her area the baseline costs are high so you basically spend most time being a small business landing scarce funding) but didn't complete that before we moved to DC.
She interviewed directly at a mix of DCPS and charter schools (and a $$$ private school which paid very little), and got an offer from a principal whose staff helped keep DCPS HR moving.
@dabeaz No. I think DC residents get weighted higher but in-demand subjects aren't turning people away.
I believe most of the alternative route teachers do program which is one year as a fellow paired with another teacher and then 3 years teaching, all at a high need school.
My wife's first school had most of the science department as former Ph.D researchers who'd hit the funding wall (never thought that'd seem like a good market but talking w/her grad advisor, now is just soul-crushing).