I dont believe types are as rigid as alot of people think. Cognitive styles has a type called Contributor. Who is usually the oldest child, or the one parents put the pressure on to go far. Contributors can be ENTJ, ESTJ, ESTP, INTJ, ISTP, ISTJ, and they usually emphasize either Se or Te. Its like a loop the brain uses. The theory says as you become aware and learn your brain kind of unlocks and you will not identify with an mbti type less as much as one of the cognitive styles. I understand this completely because i can tell when my thinking changes. This is either gonna sound like genius or madness. For instance Im a young man, life is not easy what happens when times are hard is I choose to go into loner mode and start planning alot, and become very singleminded. Then I start testing mbti as INTJ or ENTJ. And quite the opposite when things are going well, I tend to test ESTJ, sometimes ENTJ. I think its possible to be aware of different types or how to utilize them in each of us.