I think OP is an OCI architect who is hoping they will be able to lay off 22,000 and clean house. I think this is wishful thinking that will probably not materialize.
You will find it’s impossible to clean house at Oracle. You may think you are doing that but beware the management that will band together and lie about the people you should be keeping so the wrong people get laid off and you end up with a huge pile of clueless lying scumbags who are incompetent in the extreme.
The only way to make sure you are getting rid of the right people at a technical level is to test the technical people.
But then again you would have to monitor the testing to make sure that the people taking the test are the actual people who they claim to be. I would not put it past the management to hire people to take tests for their s— ups and not tell the people they are afraid of that there are any tests.
Don’t underestimate the underhandedness of most of the Oracle management. They will lie together to an extent that would be unbelievable to me if I had not lived through a lot of that.