I am not a licensed financial advisor, so take no stock advice from me. However, if I were, I would put a strong buy on Citi. The bank’s new CEO, Vikram Pandit, has moved to change a corporate culture that formerly welcomed ideas only from the current holders of power. In one bold, decisive move he has announced that good ideas can come from the past as well as the present. How? By bringing back the timeless “Citi never sleeps” tagline.