“After looking at all the options I think XYZ is the best path forward. Our team will implement that on June 3rd. If anyone has any concerns about this approach, please reach out before then. Thanks!”
I often use: "I'm open to input as we move forward on this" to suggest it's already happening, with a clear and kind invitation for feedback.
What often happens if my manager objects is the urgency of "it's already happening" will result in him wanting to pause on it, if it's important to him.
Most of the time it's "ok, sounds good" where there's a clear trust between us. Or it might result in a "ok, sounds good -- just make sure so-and-so is aware too".
