Recruitment Process Outsourcing (RPO) and embedded hiring solutions are often grouped together because they both bring external recruitment expertise into an organisation. However, they solve very different problems.

At Trust in SODA, our embedded hiring solution, SODA Max, was built for organisations that need recruitment capability integrated into their business, not simply delivered from the outside. While an RPO is designed to manage repeatable hiring at scale, SODA Max embeds experienced talent partners into your hiring function, working alongside stakeholders to improve hiring quality, governance and long-term workforce planning.

Choosing between the two is an operating model decision. It determines how hiring work gets done, how decisions are made and how predictable recruitment outcomes become.

The decision becomes much easier when it is based on operational indicators rather than preference alone: hiring volume, role volatility, rework, stakeholder load, governance requirements and the hidden cost of internal time.

Why more organisations are choosing embedded hiring

Many organisations don’t struggle because they can’t attract candidates. They struggle because hiring priorities change faster than recruitment processes can adapt.

Role requirements evolve halfway through a search. Hiring managers interpret briefs differently. Interview processes expand unexpectedly. Internal talent teams spend more time coordinating stakeholders than making strategic hiring decisions.

These aren’t sourcing problems. They’re operating model problems.

That’s why embedded hiring has become an increasingly popular alternative to traditional outsourcing. Rather than operating as an external supplier, SODA Max becomes part of the hiring function itself, helping organisations improve not only recruitment outcomes but the way recruitment operates across the business.

Definitions that hold up in procurement

Recruitment Process Outsourcing (RPO)

RPO is a managed service where a provider takes responsibility for part or all of the recruitment process against agreed service levels. It performs best when hiring demand is stable enough to standardise, broad enough to create repeatable workflows and large enough to justify a dedicated delivery layer.

Embedded hiring

Embedded hiring places recruiters and talent specialists into the client’s working rhythm, using the client’s systems and operating alongside the same stakeholders as an internal talent acquisition team.

Solutions such as SODA Max perform best where context drives outcomes: specialist hiring, changing business priorities or environments where stakeholder alignment, governance and workforce planning are just as important as sourcing candidates.

The practical indicators that separate the models

Most hiring teams don’t struggle because they lack activity. They struggle because activity doesn’t always translate into controlled outcomes.

These indicators help identify which model best reflects the reality of your organisation.

1. Hiring volume

RPO fits when:

Hiring volume is high and repeatable, with a consistent flow of similar roles and predictable demand that benefits from standardised delivery.

SODA Max fits when:

Hiring demand exists but fluctuates around product launches, transformation programmes, investment cycles or leadership changes. Priorities evolve faster than traditional recruitment processes can adapt.

2. Role volatility

RPO fits when:

Role scope stays relatively stable once recruitment begins and hiring managers can agree requirements early.

SODA Max fits when:

Role definitions continue evolving throughout the process. Scope changes mid-search, grading changes, hiring priorities move, or stakeholders refine what success looks like after meeting candidates.

3. Rework

Rework is one of the clearest indicators that a hiring model isn’t supporting the business effectively. It creates additional cost through lost time, poorer candidate experience and repeated stakeholder effort.

Common signs include:

  • Roles reopening within 60 to 90 days.
  • Shortlists rejected for avoidable reasons.
  • Interview stages being added after recruitment begins.
  • Late-stage candidate withdrawals because decisions take too long.
  • Offers lost while approvals drift.

RPO fits when:

Rework is already low, and recruitment follows a disciplined, repeatable process.

SODA Max fits when:

Rework is caused by stakeholder alignment, inconsistent evaluation or changing business priorities rather than a shortage of candidates.

4. Stakeholder load

Stakeholder load includes everything outside candidate sourcing: defining briefs, designing interview processes, coordinating interviewers, gathering feedback and keeping decisions moving.

RPO fits when:

Hiring managers follow established processes with minimal support and approvals progress consistently.

SODA Max fits when:

Hiring managers need regular coaching, interview frameworks require greater consistency and recruitment benefits from someone actively managing alignment across the business week after week.

5. Governance requirements

Governance increasingly extends beyond recruitment reporting. It includes auditability, hiring consistency, spend forecasting, compliance and workforce planning.

RPO fits when:

Standard reporting, agreed service levels and process controls provide sufficient oversight.

SODA Max fits when:

Leadership teams require greater visibility of hiring decisions, recruitment spend, forecasting accuracy and stakeholder accountability alongside delivery performance.

6. Internal time cost

One of the largest hidden recruitment costs rarely appears on a budget. It appears in people’s calendars.

Examples include:

  • Hiring managers screening unsuitable CVs because briefs lack clarity.
  • Interviewers repeating conversations because assessment criteria aren’t aligned.
  • Recruitment coordinators chasing feedback and diary availability.
  • Talent leaders rebuilding hiring plans as priorities change throughout the quarter.

RPO fits when:

Most internal time is spent on coordination that can be standardised.

SODA Max fits when:

Internal time is lost through ambiguity, rework and stakeholder behaviour that requires day-to-day influence rather than external process management.

SODA Max: Proven outcomes from embedded delivery

The results below represent delivery outcomes achieved through SODA Max engagements.

Speed

  • 11-day reduction in time to hire.

Cost

  • 26% average reduction in recruitment costs compared with traditional agency models.
  • More than £1 million saved in recruitment fees.

Forecasting

  • 100% accuracy in recruitment spend forecasting.

Delivery

  • More than 400 hires delivered through embedded talent partnerships.

Internal efficiency

  • More than 10,000 hours of internal hiring time returned to customer teams.

Stakeholder experience

  • Net Promoter Score of +100.

What these outcomes tell us

Results like these rarely come from a single intervention.

They are typically the product of operational improvements that become possible when recruitment operates as part of the business rather than alongside it.

That includes:

  • Better role calibration before recruitment begins.
  • Consistent interview scorecards that reduce disagreement later in the process.
  • Weekly stakeholder cadence that prevents decision drift.
  • Ownership of screening, coordination and interview management, reducing pressure on internal teams.
  • Continuous visibility of recruitment pipelines and hiring spend, supporting stronger forecasting and workforce planning.

These are operational improvements, not simply recruitment activities. That’s why SODA Max should be viewed as an embedded operating model rather than another external recruitment supplier.

Choosing the right model

Neither model is universally better. The right choice depends on how your organisation hires and where your biggest operational challenges exist.

Choose RPO when your priority is high-volume, repeatable hiring supported by standard workflows, defined service levels and predictable delivery.

Choose SODA Max when recruitment depends on changing priorities, specialist hiring, stakeholder alignment, governance and accurate workforce forecasting. If rework, internal time costs or inconsistent hiring decisions are already slowing delivery, embedding recruitment expertise within your organisation is often the more effective long-term solution.

Build a hiring model that scales with your business

The most successful hiring functions don’t simply fill vacancies. They create operating models that allow hiring managers, talent teams and business leaders to make faster, better-informed decisions.

SODA Max embeds experienced recruitment specialists directly into your organisation, helping improve hiring quality, reduce unnecessary cost, strengthen governance and create recruitment processes that can scale as your business grows.

Speak to the SODA Max team to discuss how an embedded hiring partnership could support your hiring strategy and help your organisation build a more predictable, efficient recruitment function.