According to the PMBOKGuide, an agile team is a cross-functional group of people that is self-organized and empowered to deliver the project objectives. The agile team should have the following characteristics1:
* They are collaborative and work together as a cohesive unit
* They have generalizing specialists who can perform multiple roles and tasks
* They are co-located or use effective communication tools to overcome geographic barriers
* They are adaptive and responsive to changing requirements and feedback
* They are empowered and accountable for their work and decisions Therefore, the best option for the project leader is to choose a team whose members have more general aptitudes and can collaborate on different tasks, as this aligns with the agile principles and values. References: 1 PMBOKGuide, 6th edition, page 21.