Edward de Bono, the so-called grandfather of creativity, describes this approach in his groundbreaking book "Serious Creativity."
Basically you always want to generate ideas separately, then expand on them in a group. The reason is that a group approach from the start will squash somewhat crazy concepts before sufficient time has been put into making them practical. As a result, the most creative ideas are shot down before they are given a chance to be refined.
Instead, if you generate ideas on your own you can spend more time on a half-baked concept in order to round out its flaws. Then once its ready, other people can help provide different perspectives on the idea without shooting it down outright.
Therefore I don't see this article as simply advocating a single founder approach. However, co-founders should harden their new ideas on their own before proposing them to each other for critique.
Basically you always want to generate ideas separately, then expand on them in a group. The reason is that a group approach from the start will squash somewhat crazy concepts before sufficient time has been put into making them practical. As a result, the most creative ideas are shot down before they are given a chance to be refined.
Instead, if you generate ideas on your own you can spend more time on a half-baked concept in order to round out its flaws. Then once its ready, other people can help provide different perspectives on the idea without shooting it down outright.
Therefore I don't see this article as simply advocating a single founder approach. However, co-founders should harden their new ideas on their own before proposing them to each other for critique.