When you 'take a back seat', you are letting others lead or get attention while you stay less visible. During the meeting, Joe took a back seat and let his team present the project.
Pro Tip 2/3
Voluntary Passivity
It suggests a choice to not be in control or at the forefront of an activity or decision-making. He willingly took a back seat to let his co-founder manage the negotiations.
Pro Tip 3/3
Temporary Status
The phrase often implies the situation is not permanent and you might take an active role again later. She's taking a back seat during this project but will lead the next one.