The modern legal delivery ecosystem

Core team, flexible resources, law firms, and ALSPs

Building In-House Legal Capacity with Flexible Legal Resources
  • Insight
  • 8 minute read
  • 01/06/26
Philipp Rosenauer

Philipp Rosenauer

Partner, Legal, PwC Switzerland

The traditional binary view of legal service delivery-work done internally versus work sent to outside counsel-is being replaced by a more dynamic ecosystem. This modern approach involves a core in-house team managing risk and key relationships, supported by flexible resources, law firms, and alternative legal services providers (ALSPs).

This shift is driven by the structural pressure on legal departments to handle increasing demand with flat or reduced headcount. Facing challenges in workload and cost control, teams must do more with less under greater financial scrutiny.

Legal service buyers are now more comfortable unbundling work and using ALSPs. As a result, the focus has shifted from whether to use alternative providers to how to design the right resource mix while maintaining control.

What each part of the ecosystem does best

The core in-house team remains central, holding institutional knowledge, setting risk appetite, and ensuring stakeholder continuity. This team handles the most sensitive and strategic work, providing critical judgment and business context.

Flexible resourcing complements the core team, enabling rapid scaling for demand peaks or niche needs. By integrating into the client's existing systems, this model keeps work in-house and is effective for delivery-heavy tasks like large-scale contract review or transaction support.

Law firms remain critical for specific, high-stakes matters such as bet-the-company litigation or complex investigations. They become cost-inefficient when used for routine work overflow or to solve short-term capacity issues.

ALSPs and managed services excel at repeatable, process-driven work such as eDiscovery and document review. By combining people, process, and technology, they improve consistency, transparency, and throughput for teams needing to standardise and measure performance. 

Why ecosystem thinking matters more now

Three trends are accelerating the move toward an ecosystem model.

First, demand volatility is the new normal, driven by regulatory changes, audits, and business transformation. A rigid model often leads to higher costs through team burnout or poorly controlled external work escalation.

Second, cost predictability is a key expectation. An ecosystem model enables better cost control by matching the right resource to each task and managing external spend with clear scoping and oversight.

Third, technology is reshaping legal operations. The adoption of AI and matter-management tools is driving expectations for greater operational discipline, including better intake processes, clearer work routing, and tighter integration among service providers. 

How to make the ecosystem work (without adding complexity)

The biggest fear clients express is that “more providers” equals “more coordination.” That can happen — unless governance is designed upfront. The simplest way to keep an ecosystem coherent is to define three things early: ownership, routing, and rhythm.

Ownership clarifies accountability, with the in-house team typically retaining responsibility for risk and prioritisation. Routing establishes clear criteria for assigning work based on risk and complexity. Rhythm creates alignment through regular check-ins, clear escalation paths, and simple reporting.

With these fundamentals in place, the ecosystem becomes more efficient than a reactive model, reducing interruptions for the core team, improving cost predictability, and preventing work from being outsourced by default.

The Role of Flexible Legal Resources in the ecosystem

Flexible resourcing adds a practical layer of resilience, allowing in-house teams to maintain control while scaling capacity. It provides a middle ground between slow-to-onboard permanent hires and expensive external firms for certain work types.

The value of flexible resourcing lies in protecting the core team's capacity by shifting execution-heavy workstreams to flexible support. It can also bridge capability gaps by bringing in specialist expertise for a defined period without adding long-term headcount.

The takeaway

The modern legal delivery model is no longer “in-house vs outside counsel.” It’s a portfolio — a deliberate mix of core capability, flexible capacity, law firm expertise, and ALSP scale. Teams that embrace this ecosystem approach can improve speed, predictability, and quality at the same time, because they stop paying premium prices for work that doesn’t require it and stop absorbing volatility through burnout.

Contact us

Philipp Rosenauer

Partner, Legal, PwC Switzerland

+41 58 792 18 56

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Julia Merz

Manager, Business Development Manager, Payroll Services & Flexible Legal Resources, PwC Switzerland

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Anna Eisaks

Talent Management, Flexible Resources, Legal, PwC Switzerland

+41 58 795 29 49

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