The reason traditional CRM replacement fails is not because the new tool is wrong. The reason is that the team has years of institutional knowledge encoded in the field structure, the saved views, the report filters, and the muscle memory of how the data is shaped. A cutover throws that knowledge into a transformation script and hopes none of it breaks. Some of it always does.
The wrap pattern keeps the institutional knowledge in place. Your team is already trained on the data. The data still lives where it has always lived. What changes is the surface, and the surface improves week one. There is no cutover risk because there is no cutover. The old CRM keeps doing its job as a database while the new operations platform handles the workflow on top.
By the time you migrate the database, you have already been using the new surface for 90 to 180 days. The migration is procedural, not existential.