Sidley Austin not panicking about losing client Merrill Lynch

Sidley Austin does a lot of legal work for Merrill Lynch, apart from, ahem, Sunday's merger. So it's understandable that the Chicago-based firm sent an internal memo to its employees yesterday urging them not to panic about the demise of one of their biggest clients. Why shouldn't they freak out? Because apparently Merrill is responsible for less than 10% of Sidley's business...