Field notes
Field kit
Essays on the leader's job as it is shifting, and the instruments you can use to navigate it.
10 essays 76 min of reading 3 tools
- 2025
The instruments
- Run the morning-after ledger
Moody's counts $662 billion of data-centre lease commitments that aren't on a balance sheet yet. When they land, the correction deletes the spend that never became capability — and can't touch the work you actually redesigned.
- Map the judgement points
Telecoms raised $1.6 trillion, went bust, and by 2004 bandwidth cost 90% less — the glut built the next web. The same arithmetic is running on AI right now, and the companies that map their judgment points before it clears will buy their advantage at the bottom.
- Run the rerun test
BCG measured the last playbook: 70% of digital transformations fell short, and nobody wrote the closing report. Five questions, one sitting, ending in a word you can say in the meeting — including the one number here you should distrust.