Field Notes are what I observed. The Field Kit is what I hand over.
Instruments you can use Monday morning, with the counts your team already has. No system, no project, no email gate. Free, because a metric nobody can calculate is an opinion.
How the Kit grows. One instrument at a time, each one tested in a real Order-to-Cash operation before it is published here. Next in line: the Monday Counts sheet and the DSO-is-an-average checklist. If you want an instrument before it is public, say so under the LinkedIn post that announces it.