Ad agency Catalyst uses AI to let one junior handle five accounts

London ad agency Catalyst says AI now performs research, drafting and data-gathering that junior staff once did, allowing a single entry-level employee to manage five client accounts instead of several. Founder Tobias Green likened the setup to a 'reverse Mechanical Turk,' with AI working behind the scenes while a human presents to clients. A separate Open University survey of 1,500 UK business leaders found 51% say AI is changing their hiring, and 19% have cut entry-level recruitment, with 42% of those citing AI as a reason.