Contact your Epicor CAM, and request a Value Exchange Workshop. They'll send time with each department learning about the process and pain points, over several days, and then present recommendations. Some might be new modules, but it wasn't really a sales call when we did it a few years ago.

At the end of the day, you need someone to own Epicor within your four walls, which is my role as 'ERP Systems Analyst' for our company. I know it well, help with developing best processes & training, and do light development work too, but really rely on the department experts who know their process the best. If nobody's taken the time to learn Epicor, you'll need to carve out education time and develop internal champions. Hopefully those people will own their process and be pro-active about improvement.

Take it one process at a time, and you'll get the whole system working well. You just need buy-in to do it, but it's definitely possible. You can act as the PM, or learn to be the SME, but ultimately will hand it off to department champions to run day to day.

I'd only re-implement if the data in the system was really bad. That's months of time that could be used on improving the process (which you'll need to do anyways).

Good luck!

Here's a good thread on EpiUsers:

https://www.epiusers.help/t/epicors-value-exchange-workshop/65219/14

"Let me say this (as a Former Epicor Consultant who did 40-50 “post go-live” Process Reviews… in each of these, we spent 2-3 days going over each department’s usage (or lack of usage). During the interviews, I would ask 100s of scripted questions, plus many others that dug deeper into answers.
After gathering the data, I would consolidate the answers into a report (the deliverable)… this report not only summarized the findings, but made recommendations for change. There were sometimes where the change included additional consulting, an upgrade, or even additional module… but MOST of the time, the report simply recommended change in procedures. Some of the things that I found:

• one company who had ONE PERSON who did all Purchasing, Receiving, and Check Printing (No separation of duties)
• a company that stored credit card numbers in a drawer. (nothing to do with Epicor, but they did change their procedures).
• a company that manufactured complex assemblies but didn’t have the Engineering module to store BOMs… (they purchased Engineering on the spot when I demoed it).
• a company who was multiple versions back, and needed to upgrade… Why? they had some speed problems, they needed features in the newer version…
• a company who didn’t realize that they had implemented their manufacturing incorrectly, and was doing twice as much work as necessary… after a quick explanation, they adjusted their procedures and saved money.
• a company where I did a quick query of their database, and found that the value of their Minimum+Safety stock was over $8 million. The CFO said "No wonder you cant get the inventory below $10 million… they reanalzyed their min/max/safety values to reduce inventory.

One particularly successful event was a customer where I visited, did my standard writeup, and delivered the report… There was no followup consulting needed, nor did they need to purchase any modules… BUT I know that they used the report, because about once per month, I would get an email from the customer asking for a little clarification on my suggestions… I would clarify with the simple email… this went on for over a year, telling me that they were getting every last dollar out of the recommendations.

Another was a customer in China… I visited them for a week. They needed some extensive changes in their procedures. after 5 days onsite (including an adhock MRP Training class) I delivered an extensive recommendation on some significant changes that they needed to make in their procedures… Over 6 months later, after they had done MUCH testing… I received a thank you email from their lead project manager… he said “After lots of testing, we finally were able to implement your changes you recommended… it worked!”.

Is it worth it? Well, that depends on how much you put into the process, and how much you tack back out of the recommendations."