I already did, Im now trying to get out of it by having my country buy up my CEO's corporations. I've found that people are too timid on the Enterprise market and don't buy up shares or whole corporations. It really didn't float my boat playing timid CEO, plus in one post someone mentioned that you have to have a country to have a enterprise (though since I can extend my enterprise longer than my country, I would assume that is wrong information) so that people have a place to retaliate against which is nuts if that's true, they should retaliate against the enterprise so it really doesn't do anything for me playing CEO at the moment.
I would rather be able to browse a list of corporations that are for sale, find the losers, and buy them up and try to make them into winners, if that is only going to be offered for the enterprise then I'll likely switch over to that and let my country go after buying up all the corporations it currently owns, but otherwise I'll just let my CEO account expire.