Barnes & Noble once played the role of disruptor, leading to the demise of many an independent bookseller. But now the big box book chain is considered a dinosaur, struggling to survive in a rapidly changing retail landscape. But if the company collapses (as its chief rival, Borders, did in 2011) who is to blame? While a recent New York Times op-ed argued that lax government policy toward giant corporations has allowed Amazon to take over the book business and made it impossible for Barnes & Noble to compete, experts from Wharton and elsewhere say there are other trends at play. They note that the 633-store chain is incurring losses because it has failed to make good use of its stores to endear itself to book lovers. By consequence, Barnes & Noble has been unable to cash in on a revival in the fortunes of physical bookstores and yielded ground to smaller local shops that have been able to forge deep connections with their customers.…