IDG World Expo CEO Charlie Greco is leaving the organization to, "pursue another opportunity in the event management industry".

Business Today reports Greco is leaving to take a position of trade show chief at consulting firm, the Gartner Group.

Greco has led IDG World Expo for five years. He is credited with making IDG World Expo "one of the world's leading IT event management companies." He has been with IDG for nearly 20 years.

Most recently, Greco's name emerged in connection with IDG World Expo's decision to move its summer Macworld event from New York to Boston, beginning 2004.

Apple and the show organisers are understood to be in continued negotiation over the move, which Apple "disagrees with".

Business Today alleges Greco hopes to "land a seat" on the Massachusetts Convention Center Authority board of directors. This group looks after all the State's convention centres - including the one Macworld Expo is moving to in 2004.

Despite his departure IDG World Expo will continue business as usual, with its full line-up of upcoming shows. Ted Bloom is to serve as chairman of IDG World Expo until Greco's replacement is named.