lavorato louise start profile john real background info grow canada personal interests family situation john lavorato record 8 fast paced years john lavorato evolved mba student northwestern university president ceo enron americas joining enron 1993 associate moved ranks quickly moved calgary performed many functions enron canada included leading trading operation january 1995 origination business january 1998 successfully growing canadian trading origination business major contributor enron corp named president ceo enron canada corp 1999