RPO vs Recruitment Optimisation: Understanding the Difference
A performance problem with your internal recruitment function typically leaves you with the same two options. RPO (Recruitment Process Outsourcing): transferring part or all of the recruitment function to an external provider who runs it on your behalf. Or recruitment optimisation: working with a specialist partner to improve the performance of your internal function.
These are different categories of solution. They’re built for different situations, produce different long-term outcomes, and require different decisions. This page explains the distinction clearly so that you can identify which approach fits your specific challenge – and which does not.
What Is Recruitment Optimisation and How Is It Different?
Recruitment optimisation is not outsourcing. It’s the process of improving the performance of your organisation’s existing internal hiring function through a specialist partner. You retain full ownership of your recruitment capability. The partner – in this case We Optimise – audits the candidate journey, diagnoses the friction points driving poor conversion and increased cost-per-hire, improves the attraction and screening processes, and builds a more efficient, measurable hiring system.
With RPO, you transfer the function and its dependency shifts to the provider. With recruitment optimisation, you build stronger internal capability that compounds in value over time. The hiring system your organisation owns at the end of an optimisation engagement is more capable than the one it started with.
This model suits organisations that already have an internal recruitment team or function, but are experiencing measurable performance problems and would like to build long-term internal capability rather than outsource the challenge.
RPO vs Recruitment Optimisation: Key Differences at a Glance
The clearest way to understand the difference is across five practical dimensions.
| RPO | Recruitment Optimisation | |
| What it involves | External provider runs your recruitment function | Specialist improves your existing function |
| Who owns the process | The RPO provider | Your internal team |
| Long-term outcome | Ongoing dependency on the provider | Stronger internal capability you own |
| Best suited for | No internal function / major capacity gap | Internal team exists, performance is the problem |
| Commercial model | Managed service fee / cost per hire | Diagnostic engagement / optimisation programme |
When RPO Is the Right Choice
- You have no internal recruitment function and need external delivery capacity.
- You’re facing a defined large-scale hiring programme that exceeds the capacity of the internal team: a new distribution site, a rapid workforce build, or a market expansion requiring volume hiring across multiple locations in a short window.
- You want to outsource the function entirely to focus internal resources on other priorities and hand recruitment to a managed service.
When Recruitment Optimisation Is the Right Choice
- Your internal team already exists and the problem is performance rather than capacity (rising cost-per-hire, high candidate drop-off, slow time-to-fill, unpredictable pipeline).
- You want to own your hiring capability long-term and reap the long-term rewards of an optimised hiring (improvement to the candidate journey, the attraction channels and the pipeline structure).
- The cost of full outsourcing is disproportionate to the scale of improvement needed. If your internal function is mostly working but has specific, diagnosable performance gaps, optimising those gaps produces a stronger return than replacing the entire function. Our candidate journey optimisation and cost-per-hire reduction pages cover this.
Can RPO and Recruitment Optimisation Work Together?
In some organisations, yes. A large multi-site employer might use an RPO arrangement for one division while working with us to optimise the internal function in another. The two don’t inherently conflict where their scope does not overlap.
What they cannot do is serve the same function simultaneously. Your organisation cannot hand its recruitment function to an RPO provider while retaining full internal ownership of the same process.
For organisations whose primary question is about outsourcing their recruitment function specifically, our outsourced recruitment optimisation page covers that territory in more detail.
How to Choose Between RPO Recruitment and Optimisation
Three questions identify the right answer for your organisation.
First:
Do you have an internal recruitment team or function? If not, RPO is likely the appropriate starting point. If yes, move to the second question.
Second:
Can the performance problem be identified through hiring data? If the challenge comprises of measurable challenges (high drop-off rates, high cost per hire etc), optimisation is likely the right response. If the problem is structural capacity – not enough people to run the process at the volume required – RPO may be needed.
Third:
Do you want to own and build your hiring capability long-term, or transfer it to an external provider? The honest answer to this question determines more than any other factor which model is the right fit.
If the answer is unclear, we suggest having a conversation with us about what’s actually driving your performance problem. We work from data first then make recommendations following the diagnosis stage.
Why Choose We Optimise
We Optimise works with enterprise and large national organisations where the internal hiring function needs to perform better, not be replaced.
We’re not the right partner for every situation. Organisations that need to outsource a recruitment function, that have no internal capability to build from, or that need managed delivery rather than system improvement should be looking at specialist RPO providers rather than us. We’re honest about that from the first conversation.
For organisations where the problem is performance rather than capacity, we’re the specialist partner that makes your internal function measurably better. Our volume hiring agency services page covers how that sits within the broader recruitment performance framework.