If they create it, they own it.
If you decide what to do by yourself and tell your people, while they may nod their heads, they could reject the idea and not work hard to make it happen because it was someone else's idea and they didn't fully agree with it or they just didn't like they…
I LOVE collaborating with my team and making it their idea to implement. The more it’s their idea, the better the buy-in.
This is group problem solving everybody owns it!
If they weigh in, then they will buy in!