2 sentences for 换人 (huàn​rén)

1. 公司领导层换人了。

   gōng​sī lǐng​dǎo​céng huàn​rén le.

   There has been a change in the company's leadership.

   Source: Dong Chinese Dictionary

2. 看到球员受伤，教练赶紧要求换人。

   kàn​dào qiú​yuán shòu​shāng, jiào​liàn gǎn​jǐn yāo​qiú huàn​rén.

   Seeing the player injured, the coach quickly called for a substitution.

   Source: Dong Chinese Dictionary