What is the fine-grained topic of the following text: Mark specialises in Learning & Development within Control Functions in the Financial Sector, performing that role most recently in Barclays Internal Audit and previously as an Audit Partner at the Royal Bank of Scotland Group and as Head of People Management for the audit function at Lloyds Banking Group during the transaction between Lloyds and HBOS. Only return the topic.
Mark's specialization in Learning & Development within Control Functions in the Financial Sector.