Dutch tech and healthcare giant Philips has been in the smart-product creation business for some time. Now 12- years-old, the Amsterdam-based conglomerate generates $25 billion in sales with 108,000 employees spread across 60 countries. Change — and consistency — don’t come easily at that size. And yet. Philips global head of digital Blake Cahill came on board 26 months ago, tasked with one audacious assignment: create digital harmony between Philips’ 10 businesses and get all staff and markets to the same level in digital. That has meant that while Philips uses agencies, it is bringing more capabilities in-house.