Text: What's more, these companies believe in their products--unlike Wolff--and back them with serious managers, who, whatever their other weaknesses, are fleet-footed and care about their customers.
Entailment: What more is that these companies believe in their products and back them with managers who are reliable and care about customers.
Contradiction: What more is that these companies do not believe in their products and would never back them with managers who are reliable and care about customers.