WPP's dire profit warning is the last thing the ad business needs as it grapples with the impact of AI
1. WPP issued a profit warning, shares fell 18%. 2. Ad agency sector is struggling with AI changes. 3. 2025 revenue forecast predicts a decline of 3% to 5%. 4. WPP's CEO is leaving amid significant challenges. 5. Rival firms are investing heavily in AI adaptation.