I am the formal leader of this project but the everyday management is in the hands of my assistant.

我是该项目名义上的领导，而日常的管理工作都是由我的助手在做。

youdao

On a Scrum team, the lack of a formal leader allows different individuals to contribute leadership at times when their knowledge and skills are the best fit for the team's current needs.

在Scrum团队中没有正式的领导，每个人会考量自己的知识和能力，判断是否符合团队的当前需要，如果符合，就在某一段时间里担当团队的带头人。

youdao

You don't need to have formal authority to become a leader.

你不需要有正式的权利来成为一名领导者。

youdao

The BNP leader himself plans to launch a formal complaint about the program.

VOA: standard.2009.10.23

There is no formal leader, organization or event publicity, and everybody participates for different reasons.

BBC: Buenos Aires�� Critical Mass

He has chosen as his running mate Paul Ryan, the House Republican leader -- not their formal leader, but their intellectual leader, the person who set their agenda.

CNN: Romney did Obama a huge favor

Formal Liberal leader Lord Steel, who tabled the motion, which included plans to allow peers to permanently retire, said the House had spoken "very clearly" on the matter.

BBC: House of Lords: Peers warn against influx of new members