Is there?
There are two kinds of clients in the legal field: rich ones and poor ones. Rich clients don't seek the cheapest legal services in the way they don't look for the cheapest office space or the cheapest office furniture. No board member wants some guy in India poring through his e-mails to do an investigation or diligence for a transaction. For rich clients, saving money and hiring "pretty good" isn't such a great thing if their opposing party spends more money and hires "pretty great."
Poor clients are different. Poor clients do want the lowest possible price for the given result. But poor clients tend to have problems that are hard to outsource. How is an attorney sitting in India supposed to represent you in your divorce, or help you get out of a traffic ticket?