Link building is still one of the hardest zones for agencies to scale from the inside. A ton of effort happens kind of behind the curtain, not really visible.
You have to hunt for possible spots, dig through research websites, come up with content angles, coordinate outreach, keep those partnerships going, and then actually watch the performances, so yeah, it takes real time, and not a small amount. And time eventually becomes expensive.
This is why many agencies now outsource link building services instead of managing every process internally.
The goal usually isn't avoiding work. It's reducing workload pressure while maintaining consistent campaign execution.