[extr]

I don't even really feel like this is a PM-specific trait. The best engineers I know stay focused on immediate priorities and what needs to happen to see particular outcomes. The worst PMs I know derail meetings with suggestions/changes/tweaks with dubious ROI.

[make3]

Prioritization is the #1 thing (I feel like this is a tautological statement). Spending a million hours doing something useless is just so obviously bad and expensive.