You’ve got a big idea.
You’ve got a big client who’s a perfect fit for your big idea. It’s world-changing. It’s amazing.
But getting the client to change their mind is hard. Real hard. (It’s about now in your career that you realize coming up with the big idea is the easy part. Getting the client on board is where the magic really happens.)
You’re only one person. It’s not enough to change their mind. Look for strength in numbers to back you up.
Find corroborating evidence to support your proposition. Especially sources your client trusts.
This helps authenticate and substantiate your idea. It’s easy to disagree with one person.
It’s a lot harder to pushback against an army of peers.