I know someone who was in a similar situation recently. The whole thing becomes catch-22. The manager shared his insights but was brushed off as sour grapes and

I know someone who was in a similar situation recently. The whole thing becomes catch-22. The manager shared his insights but was brushed off as sour grapes and biased against the company. That said if it had caused some panic at the office the upper management might want to take steps against the said manager. So it's better not to say anything.