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I agree that raw numbers let a poor decision-making culture off the hook.
I recommend a framework that forces alignment, authority, and accountability.
Whatever decision (or
decision bundle) you want alignment, agree that the work is worth documenting.
Then govern the work with verbs that force the team to document the collaboration.
Draft. Default Duration = 1 Day. Assigned to A.
Review & Revise. Default Duration = 1 Day. Assigned to B, C, D, E, F, and G.
Approve. Default Duration = 1 Day. Assigned to H.
Distribute. Default Duration = 1 Day. Assigned to I, J, K, L, M, N, O, and P.
If the work stalls, the team is working on the wrong decision.
The team jumped ahead. Go back and figure out what upstream decision is best to make the downstream decision easier.
Or, if the work stalls, the team has the wrong assignments.
One or more assignments carry some untrustworthiness.
Someone is not competent, honest, dependable, or benevolent with their assignment.
So change their assignment.
Regardless of any verb assignment the PM signs up for, the PM can and should shape the decision culture. RACI is unhelpful to decision culture.