Jim Delaney argues that the real differentiator in 2026 isn't the AI model itself—it's the signal and context layer underneath it. With 81% of sales teams using AI but only 18% reporting high ROI, he explains why most companies bought the engine (Claude) without building the fuel tank (the Context Vault). The piece unpacks the "K-Shape Effect" where ungoverned AI accelerates top performers while magnifying weak links, the hidden "Supervision Tax" that keeps margins flat, and the three-layer architecture—persistent Skills, the MCP signal layer, and integrated systems of record like Fathom and HubSpot—that turns AI from a toy into a true operating system.