As an engineer, I'm biased, but most I know just want to do what they're told to do and will diligently apply the tools available to conduct their work, the rest will be creative in how they do their tasks, i.e., try to be more efficient..
So, the subject OLD DEAD ENGINEERS (ODE's) probably were the real architects after a while..when the physical process was established in their mind and the application to new sites created the challenge. The process was the same: check out the site, create the land survey, make the routing and drainage work while applying hole design principles and classic challenges. Voila!
If a landscape architect or Dr. or "player" can do it, certainly an engineer with a little imagination and cultural exposure can too.
A crafty one goes back and does a post construction survey, and compares plans to the "as-built" drawings to judge how well the plans were executed, to build on experience..