The most valuable thing a delivery leader protects isn't the timeline. It's the board's confidence that the status report in front of them reflects reality. Lose that, and no amount of green RAG status will save you.
I once inherited a programme where confidence had quietly eroded; not because of a single visible failure, but because the team had been presenting optimistic status reports that smoothed over the risks. In trying to protect the relationship in the short term, they had eroded the very trust that made the relationship worth protecting.
My first significant act was the opposite of that. I went to the management with an honest diagnosis: the programme, in its current form, could not succeed, and here was the evidence. That meant recommending a strategic pivot, which was a genuinely difficult conversation, because it meant admitting that a substantial investment hadn't produced what had been promised.
The counter-intuitive outcome was that the mandate grew. The board didn't invest less because they were told the hard truth they invested more, because what I had restored was their confidence that they were finally getting the real picture.
If you're an executive buying delivery, this is the signal worth watching: how does your leaderership report status when the news is bad? That tells you more about delivery health than any dashboard.