As the CEO of Unilab, I would implement a pay for performance plan that provides medical representatives commission-based bonuses for meeting and exceeding quarterly sales targets, to incentivize increasing medicine sales volumes. Providing compensation that directly correlates with sales performance will strongly motivate representatives to devote additional effort towards promoting Unilab's products and expanding their customer base. Tying a representative's pay to the business outcomes they influence through their work is an effective strategy for driving better business results.