One thing is always missing from ERP systems: a big sigh of relief. It won’t come after weeks of debating which vendor’s enterprise resource planning solution is the best for a company. It won’t come after months— and possibly years—of implementing it, no matter how long the CFO, CIO, and everyone who toiled away on the software waited for the exhale. In many ways, post-implementation—when the system is finally incorporated within the company and fully up and running—means the work is just beginning.