Great suggestions! I like the following especially: “However if both client and agency adopt a beta mindset, sharing work earlier and developing it together, can save a lot of time.” Yes, time will be saved — more importantly, a better outcome will happen more quickly!!! And it’s that optimized outcome that’s sought, not an appearance of never having false steps; indeed, if there aren’t occasional false steps, creativity is almost certainly missing…

A good author to pay attention to is Keith Sawyer. His first book, “Group Genius,” is one of my valued resources — as is his blog and other writing efforts. Check them out!