What is the fine-grained topic of the following text: The Mayer Brown team was led by Structured Finance and Securitisation partner David O’Connor and included Banking & Finance senior associate Noman Ali and associate Jaime Lad; and Tax Transactions & Consulting partner Sandy Bhogal and senior associate Ben Fryer. Only return the topic.
Mayer Brown team's leadership and participants in Structured Finance, Securitisation, Banking & Finance, and Tax Transactions & Consulting.