Human Resource Management: How to Right-Size Your Workforce

Between a workforce shortage that stalls production and a surplus that turns into a financial burden, most companies struggle to determine the right number of employees. That equation sits at the heart of human resource management in any organisation.

This guide covers the core functions of human resource management, how to determine the right workforce size for your business, how to reduce employee turnover, and what AI tools genuinely add to all of it.

What Is Human Resource Management?

Human resource management is the organisational function responsible for attracting, organising, developing and retaining human capital in a way that serves the company’s objectives. Its role is not limited to administrative processes like payroll and leave — it extends to strategic decisions that directly affect a company’s capacity to grow and expand.

The fundamental difference between effective HR management and a nominal one is that the first participates in deciding the size of the workforce, its composition, and the timing of hiring — while the second simply executes what other departments have already decided.

What Are the Core Functions of Human Resource Management?

1. Workforce planning: determining current and future staffing needs in both number and capability.
2. Recruitment and selection: sourcing candidates, screening them, and choosing the best fit for each role.
3. Onboarding and integration: preparing new hires and accelerating their path to full productivity.
4. Performance management: setting metrics, evaluating results, and linking them to development and rewards.
5. Training and skills development: closing capability gaps internally rather than hiring externally every time.
6. Compensation and benefits: designing salary packages that are competitive and financially sustainable.
7. Regulatory compliance: ensuring contracts, Saudization and insurance align with Saudi labour regulations.
8. Employee retention: reducing turnover and protecting institutional knowledge.

These eight functions are interdependent, and weakness in any one of them shows up in the others. But the one with the greatest combined impact on cost and productivity is the first — planning workforce size — and it is the focus of this guide.

How Do You Determine the Right Workforce Size?

Sound planning rests on three pillars: who are you? who do you want to be? and how do you get there?

1. Assess the current state: your capabilities, resources, requirements, and the skill and management gaps inside your company.
2. Define the target future state: your vision, commercial objectives, and the competencies required for the future you are working toward.
3. Map the transition: the strategies, investments and changes needed to close the gap between the two.

Technological, market and economic variables should factor into this, along with emerging skill requirements that certain roles may demand — so that your plan can adapt rather than break.

For the full methodology — building the plan, gap analysis and demand forecasting — see our dedicated guide on strategic workforce planning.

HR management also needs a clear plan for both scenarios: what do we do if the workforce falls short and turnover rises? And what do we do if headcount exceeds requirements and costs rise with it?

How Do You Improve Employee Retention?

High turnover is among the most expensive indicators a company carries, because its cost never appears in a single line item — it spreads across rehiring, training, lost productivity and accumulated knowledge walking out the door. Four practices make a measurable difference:

1. Improve the employee experience across the full cycle: from a competitive offer, through onboarding, to flexibility in tasks and working hours, and end-of-service benefits.
2. Build a culture of recognition: financial and non-financial alike. The workplace is where employees draw their professional self-worth, and that is what drives them to improve performance and propose practical ideas.
3. Adopt flexible policies: in working hours and remote or hybrid arrangements for administrative staff. This flexibility strengthens work-life balance, raises job satisfaction and lowers turnover.
4. Strengthen team spirit and the internal environment: the workplace is the primary reason employees stay or leave. Give priority to an environment built on mutual respect, trust and transparency.

For how to calculate and benchmark the figure itself, see our guide on employee turnover rate.

What Are the Alternatives to Layoffs?

Reducing headcount is only necessary where it has been established over time that certain staff are damaging the business and its assets, or harming the team through undisciplined conduct.

Where the driver is cost reduction, there are more effective alternatives:

• Working with professional workforce outsourcing companies.
• Seasonal labour contracts that cover peak demand without permanent commitment.
• Internal restructuring and task redistribution.
• Retraining employees and redeploying them to departments running short.

Choosing alternatives over layoffs is what companies do once they recognise the hidden long-term cost of cutting: lower morale among those who remain, damage to the employer brand, and loss of institutional knowledge.

AI in HR: What Does It Actually Add?

AI tools in human resource management have moved from a luxury to an operational necessity. Here is what they genuinely contribute:

1. Proactive workforce planning

AI-supported systems let HR leaders forecast future requirements based on analysis of current and historical sales data, turnover rates and other inputs. This moves a company out of reactive mode and into readiness — with the right capabilities available at the right time and in the right numbers.

2. Talent acquisition and automated matching

Intelligent recruitment tools let you screen large candidate pools and identify the strongest fit based on skills, experience and cultural alignment — cutting time and effort while raising selection accuracy across hundreds of applicants.

3. Career pathing and skills development

Some tools identify capability gaps inside your organisation and help you build upskilling and reskilling programmes that keep employees current in their fields, while recommending tailored training to support internal progression.

4. Data-driven decision support

These tools provide real-time insight into workforce performance, along with analysis of historical and current trends and workload distribution — enabling immediate strategy adjustments, smarter allocation of existing staff, and redeployment of employees where their skills are actually needed.

Which tools are most used in the Saudi market?

The most widely adopted platforms include SAP SuccessFactors and Oracle HCM Cloud, alongside certain ERP applications. All offer full Arabic support — from user interface through to reports and menus.

Predictive analytics

This is the strongest capability these technologies offer. It relies on statistical models and machine learning algorithms to analyse historical data and forecast future outcomes.

How is it applied? Through predictive modelling, which requires specialists to configure and is built on company inputs such as seasonal sales volume, turnover rates and upcoming projects — producing a model of the headcount required in each department for maximum productivity.

Outsourcing: The HR Lever for Both Shortage and Surplus

This is an established strategy for companies operating in the Kingdom, particularly ambitious ones with a continuous pipeline of new projects. But the decisive point is not choosing the strategy — it is choosing the partner. The manpower supply market includes experienced, reliable companies that can serve as genuine strategic partners advising you on the right workforce size, and others simply looking to increase supply volume. See the criteria for choosing a manpower agency.

Three main benefits come with a reliable partner:

1. Smarter management of both shortage and surplus: layoffs stop being forced, and disguised unemployment does not build up inside your company. You can contract skilled, qualified labour for defined periods, on long or short-term terms.
2. A partner carrying the full recruitment burden: from sourcing and interviewing candidates, to confirming regulatory compliance, through to payroll, licence renewals and end-of-service settlements.
3. Faster access to specialised roles: instead of spending months searching, your partner gives you a direct route to qualified candidates from multiple countries, in the right numbers and at the right time.

SMASCO: Your Partner in Workforce Management

Not only because SMASCO was the first licensed skilled-labour supply company in the Kingdom, but also for a track record across a wide range of business sectors and deep experience in sourcing the professional talent companies need to grow and expand.

Contact the SMASCO team for advice on the right workforce size for your business

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