“Composable” was one of the more seductive ideas the SaaS industry produced.

The pitch was intuitive: rather than locking yourself into a single monolithic platform, you’d assemble the best tool for each job. Best-in-class CRM. Best-in-class marketing automation. Best-in-class data warehouse. Connect them together, and you’d have a technology environment that was both flexible and powerful — one that could evolve as your business did.