Just FWIW,
The 787 DOES have TAC,and as a matter of fact its supposed to be compensating over 95% of the yaw in case of an EO.Could have been 100% but boeing decided to "de-grade" it to provide some feel(as in the 777's).No switch however,as correctly pointed out.
@Boeingdream:
You're like an itch on my balls.Too embarrasing to itch but too nasty to leave alone.
I prefer the latter!...
Niice one....hahaha!