New Business Revenue Split Inquiry

I collaborate with four sourcing consultants and one 360 recruitment consultant. The 360 consultant, who is new to our team, has begun engaging in business development. She mentioned that when she secures new business but is unable to fulfill the positions herself, the roles are handed off to the sourcing consultant. She believes the revenue should be split 30% to her and 70% to the sourcing consultant. She argues that this arrangement should apply to all new business she brings in, as well as any placements she cannot fill, for a period of 12 months after acquiring the client.

Is this the correct approach?