The company I work at follows that queue. Engineering might not build anything custom for new clients, since it's a software platform product, but Sales Enginee

The company I work at follows that queue. Engineering might not build anything custom for new clients, since it's a software platform product, but Sales Engineers invest heavily into building turn-key solutions to their clients' problems using our platform. I just finished a project allowing our own sales people to duplicate their efforts into the actual system once the customer is converted and they estimated that simple copy operation would save them 500 hours a quarter. That's a ton of investment for a company of my employer's size. If we're talking about a company like Plantir, whose primary engineering workforce is, "Implementations Consultants", then that absolutely makes sense. Especially since those are government contracts, which can attach strings to the proposal requiring proof the bidder is capable of doing what they promise.