[SuperNinKenDo]

There's a couple possibilities. The main possibilities are that those people were totally unnecessary and firing them was completely justified; otherwise, they were doing useful work, and the company is either able to run on the fumes of their work for a few years before things really start to fall apart, or else what they were working on was essentially projects that were completed but don't require so much ongoing maintenance.

It's probably all three and will depend on the person in question which of these 2.5 categories they fit into.

There's also of course the part where people were doing work considered useful based on the goals of the prior company leadership, but who's services aren't missed by the new leadership in meeting their goals.