Design and development in the same room
A logo that only works at one size, a design nobody costed, a site with no owner after launch. All of it comes from splitting one job across separate vendors. We kept design, development, and maintenance in one team so there is nobody to blame and nothing to hand off.
It also means we say no sometimes. If a project needs a specialist we do not have, we tell you at the planning call instead of learning on your budget.