Basically the ERP vendor sells you the software and estimates that you need a couple months and a couple consultants for the migration and integration, plus a few users of your product as guinea pigs. It is expensive as heck but well, at least it is only two months (plus hotels, plane and food).

After two months you’re halfway done according to the vendor but you need some extra helping hands for the harder features, so you get more consultants, and a department to handle change. You get a few posters.

After a couple years you have eight consultants and a consulting product manager still doing the migration work, plus eight more freelancing ERP experts, and about four engineers from your own team working full time on apis. The work is halfway done, though! Your non-tech staff is juggling between two products and dissenting voices start to appear. You make and distribute t-shirts with texts like “Project Evolution” or “Project Future” to ensure everyone is on board.

After two more years you are almost halfway there, but staff turnover guarantees that people don’t remember the productivity of yore, and the new ERP is judged as good enough. People have gotten used to it, the jokes aren’t as vicious as before, and only a handful of people were fired in the previous years due to the company going severely over budget. But hey nobody gets fired for buying IBM so the boss who decided to blow 15 million on it is fine.