B2B growth is being restructured by three forces: enrichment-powered targeting (Clay Ads cut LinkedIn CPL from $250 to $25 by pairing enriched audiences with self-maintaining exclusion lists, solving the work-email-vs-personal-profile mismatch; 90%+ LinkedIn and 60%+ Meta match rates now feasible), GTM engineering as a technical system (scraping competitor ad engagers, enriching with emails/phone numbers via Exa/Apollo, pushing to Instantly for outbound), and agent-driven outbound that replaces rigid sequences with tool-equipped agents determining execution from context. Competitor LinkedIn ads are a high-intent source because engagers actively hand-raise interest; engagement pods hurt reach by recycling the same audience. The LinkedIn organic formula combines demonstrating outcomes, using AI to bridge to outcomes, documenting process, and gating implementation assets behind engagement. Corey Haines' 17.4K-star marketingskills repo shows demand for 36 composable marketing skills executable by agents. Structurally, SaaS multiples compress as AI commoditizes features; durable moats are compounding data loops captured through agent-driven write-path workflows (reasoning traces), not read-path incumbents receiving data via ETL. Network effects harden as AI makes competitors trivial to build—existing liquidity compounds while others fight scraps. Marcus Moretti's "no MCP, swiftly cancelled" rule puts a 12-month death timer on any vendor lacking integration support, making integration platforms like Nango increasingly load-bearing.