Only one was obvious in the hindsight: management stopped caring and sometimes attending product demos, but really cared about India's part in the deliveries (justified as we want them to level up quickly).

Everything was subtle:

Managers distanced themselves from the team, had more meetings between themselves ("for efficiency - team grew so we cannot include so many people in the meetings anymore"), they were looking at each other often when making decisions (which to me looked as if they were trying to think how to handle requests knowing the team will be laid off soon).

In the final weeks management started suddenly taking/reassigning tasks out of US team's hands in ways that didn't make sense.