The main build-vs-buy decision is not whether Fabric plus Foundry plus custom build can achieve high capability, but whether the organization can afford the time and effort required to reach and sustain that capability while delivering value quickly.

The capability ceiling of "Fabric + Foundry + custom build" is high.

— Pyrana vs Microsoft Fabric — Comparative Analysis (Summer Fridays).pdf

The real question is the cost of getting there

— Pyrana vs Microsoft Fabric — Comparative Analysis (Summer Fridays).pdf

and keeping it there — on a project the RFP says must "deliver value quickly."

— Pyrana vs Microsoft Fabric — Comparative Analysis (Summer Fridays).pdf