So is it time for the smart rats to leave a sinking ship? Is all B2C e-commerce going under? A recent Bain study suggests the smartest rats will reserve judgment until they've checked out four signs of seaworthiness in their eCommerce ventures. These include their abilities to: sell products through multiple channels; use the Internet to improve the cost and means by which products move from suppliers, in-house and on to customers; create functions on their sites that engage customers and convert browsers to buyers; and offer unique products or services relative to established mass competitors.