ENTP/ENFP relation:
Generating Ideas. Thinking Feeling boundaries are not very thick. So they can relate well, much more efficiently than the ENFP/INTP bonding.
ENTP/ENFP share common ground on the primacy of Extroverted Intuition whihc is basically a raw idea engine. Both tend to have a very high social consciousness, and both are primarily concerned with finding problems in society and coming up with powerful visions of change.
The ENTP will use his critical thinking skills to point out what is wrong in society, and offer solutions on how it can be done. ENFP will envision the situation, and recommend the most humane ways to go about it, and how impersonal ideas about how those problems can be solved can be tied to the personal problems and how the human element can be taken care of.
The ENTP/ENFP bond is the synthesis of imeprsonal vision on how to carry society forward with the personal. Again the theme is laying out a powerful vision of change.
Now here are some general comments on your chart:
ENTP: The innovator-Comes up with impersonal ideas on how to solve many of the objectively observable problems in society.
ENFP: Same notion as the ENTP, although with a personal approach. Mostly concerned with the elevation of social consciousness and making the external world a better place.
INTJ: An internal visionary. Concerned with impersonal ideas in regards to how the individual can make the world a more accomodating place for himself. Unlike the ENTP, he insists not on changing the external world and seeing how you measure up to it, but by how you can make yourself a more adept person to the point where you could twist the world to your liking. So the INTJ is the same kind of a visionary as an ENTP, although internally focused, yet just as dispassioned and impersonal, and thus more individualistic because of Introversion. And sees the final goal as the state where the world conforms to your principles, and not you working towards social consciousness and making it a better place yourself. This is a salient distinction of the Ne and Ni, introversion/extroversion. A great example of such INTJ prophets would be embodied in the teaching of Friedrich Nietzsche's Zarathustra, and Rand's ethical egoism.
INFJ:The type that is the most concerned with bringing meaning to one's individual vision. Same notion as the INTJ, though the vision must be lived out personally with no other task than giving the individual meaning to life. Unlike the more theoretical INFP, who just tries to weigh out what is important, the INFJ is concerned with actions that need to be taken in order to find the meaning in life that the INFP longs for.
INFP: The most theoretical about the human element. Primarily concerned with weighing things out for the sake of finding inner harmony of feelings. And knowing on a cerebral level, what is necessary in order for one to be at peace with oneself, and find meaning in life. Unlike the INFJ, the INFP is much less concerned with acting out on their beliefs. In many respects, the INFJ expounds and seeks cerebral implementation of the vision of the INFP.
ENFJ:The implementor of the ENFPs vision, the popularizer.
ENTJ:The implementor of the ENTP's vision.
INTP: As analogous to thought as the INTP to feelings. The most theoretical about impersonal ideas, yet not strongly concerned about acting out on convictions. As analogously to the INFP-INFJ relationship, the INTJ is oftenly the expounder and the cerebral implementor of the ideas of the INTP.
So the INTP first propounds a theory. The INTJ gives it more depth and points out the practical implementation and sends it back to the INTP. The INTP tweaks it up and gives the INTJ criticisms, and then they strive for the synthesis of ideas and prepare their theory for presentation to the outer world. Than the ENTP connects it to the world of ideas and passes it down to the ENTJ, who is the primary implementor.
Same diagram applies to the way NFs handle personal affairs.