Now back to The ENFJ-ENTP Dynamic.
I can see this being a good match and here's why (Let's see if I can say this without sounding like a complete jerk...):
Both ENFJs and ENTPs are able to manipulate people in pursuit of their goal with such mastery that it's really sort of scary. And frankly, this conscious manipulation of people oftentimes offends my ENFP sensibilities. Nonetheless, I speculate that this ability to manipulate people is the main point of connection between ENFJs and ENTPs. It's sort of like they both believe in working people to get done what needs to be done.
What I find reallllly interesting is that the underlying motivations for manipulation are COMPLETELY different. (All you ENFJs and ENTPs out there, tell me if this doesn't ring true.)
ENTPs and ENFJs have a lot of Fe (Extraverted Feeling) going on. Fe requires a great deal of social manipulation when done right. making sure everything is working smoothly between several different people means that you are attempting to manipulate the situation into something you perceive as socially correct. Fe means an ability to sort of be all things to all people which by definition means there's some degree of "fakeness" that you're putting up.
ENTPs use their "working people" powers to get what they want... oftentimes in a more spur of the moment manner than ENFJ who always has an agenda. For example, ENTP male wants to bed a woman he just met and then really turns on the charm.
ENFJ Executive Director of non-profit makes a snap decision that he doesn't like someone because this person got in a fight with one of the ENFJs inner circle (but the fight had nothing to do with the ENFJ personally or their non-profit). The ENFJ feels he is justified in pre-meditatedly trying to hurt the "offenders" reputation by telling all the right people what a bad person "the offender" is.
The above two examples are real ones based on my own observations. And, of course, not all ENFJs/ENTPs would do these things. I chose to use these extreme examples to illustrate the strong connection ENFJs/ENTPs have about seeing the people they encounter as tools for the agenda au currant.