Should companies adapt to ERP or the other way around?

There are factors which suggest that we probably should not pose a question either...or.

First, the organizational adaptation to the package is important. The companies should assess their fit to ERP system and create a plan for the change management. The organizational fit to ERP rests on three main pillars: data, process and user fit. System implementation is successful when these variables are controlled by the change management. The combination of different data samples, processes and users is enormous; it is just impossible to create a perfect match for every combination.

Second, ERP packages should fit at least most common scenarios plus be easily adaptable to the rest. That's where the world is going - creating products that are flexible and adjustable in meeting clients' needs. The success factor of a product relates to its ability to interact with the users and evolve over time.
For example, ERP was adapted for the automotive industry to match sector-specific behaviors: customer orders, dispatch notes, pricing, invoicing, capacity estimates, etc. How many industries are out there that may benefit from a pre-adjusted platform? Probably too many and this practice is worth to pursue.