SmartHire vs. RPO: A Sourcing Layer vs. Outsourcing the Entire Recruiting Function

Recruitment Process Outsourcing (RPO) and a sourcing layer solve a similar surface-level problem — not enough qualified candidates — in fundamentally different ways. RPO hands significant parts of the recruiting function to an external provider's team and process. A sourcing layer adds candidate flow into the team, ATS, and process you already have. Neither is universally better; they fit different situations.

What RPO actually means

A full RPO engagement typically means an external provider's recruiters run some or all of your requisitions, often using their own methodology and sometimes their own technology layered on top of or instead of your ATS. It works well when a company wants to hand off the entire function, doesn't have an internal TA team to scale, or needs to stand up hiring capacity fast in a market where it has no existing presence.

What a sourcing layer means instead

A sourcing layer like SmartHire sits upstream of your existing ATS and recruiting team, generating and pre-screening candidate flow that your own recruiters then manage through your own process. Your team keeps ownership of the relationship, the employer brand, and the hiring decisions — the layer only changes how many qualified candidates they have to work with.

Where each model fits

• RPO fits: no internal TA function to build on, need to stand up hiring in a market with zero existing presence, want to hand off the entire process end to end
• A sourcing layer fits: an internal TA team already exists and knows the business, but candidate volume is the bottleneck, not process or headcount
• RPO typically costs significantly more per hire, reflecting the fully outsourced service model
• A sourcing layer typically costs less, because it augments existing headcount rather than replacing the function

Why most companies with an existing TA team don't need full RPO

If a company already has recruiters who know the business, the culture, and the hiring managers, the actual problem is usually candidate flow, not process ownership. Replacing an entire function to solve a top-of-funnel problem is disproportionate. A sourcing layer solves the specific bottleneck without disrupting everything else that's already working.