I know this is a dead thread, but I joined this forum to post on this.
What you have to realize is that the 'entj' way of doing things doesn't work with everyone. Tbh, I would classify myself as an INTJ but I understand that with different people you have to use different strategies. Sometimes we have to be extraverted, sometimes we have to be dull, etc..
And I think the whole "all executives" are ENTJ's is complete bullshit. Most of the executives I know are like homer simpson. When I was working in corporate america I let go of the NT bit and just relaxed and enjoyed. When you're on your own doing your own business you have to take on a different persona because you can't leave it up to chance.
Carl Icahn has seen more CEO's come and go then anyone, watch this talk he gives
http://www.youtube.com/watch?v=FcWg4897yIM
For every ENTJ partner at McKinsey there's at least 200 laid back CEO's of fortune 1000 companies that got in the way Carl Icahn says