I'll take the lead on this.

Meaning

I will be responsible for this.

Examples

• John: 'The budget needs updating.'<br>
• Alice: '<b>I'll take the lead on this</b> and have a draft ready by Friday.'
• John: '<b>I'll take the lead on this</b> and ensure all communications are consistent.'
• Alice: 'We need to coordinate with external vendors.'<br>