It works both ways. I worked in a plant that was all UG. Corporate signed a big PTC contract because they came in with a lower price than UG. At that point, each division had been free to choose their own CAD and the corporate was split between Pro/E and UG. We had at least 2 large divisions using Iman/TeamCenter. Because we had a sister plant using AutoCad, when they went to a 3D cad system, corporate forced Pro/E on them and we had to move to Pro/E, too, after 15 years on UG. Move forward 6 years and the corporate decides our business is too cyclical so the sell the division to a company that uses CATIA as the corporate standard. The plant goes through another round of training and change.
Sometimes decisions are made based on other than technical reasons.
"Wildfires are dangerous, hard to control, and economically catastrophic."
Ben Loosli