In my opinion text game is a extension of your inner game.
If you fix the mindset the text flow through, that why when you end up your night in the zone and grab your phone to text your girls the shit you send is A M A Z I N G. (That's an amazing trick by the way, I read on the forum somewhere that guy was doing it too.)
Now you might also add some outer game tweak but Inner is fundamental.
Sure, to the extent that you know how to express yourself adequately, absolutely. But until Bateman went through training he couldn't do that. Know what I mean?