I don't know if it came out after DXC formed or before in CSC, but Mikey has often produced a graphic showing salaries and pointing out a bulge in the figures highlighting "over paid" staff.
As well as reducing headcount, the other target is to have each role paid as little as possible.
The only "safe" people below layer 4 are either those tied to a nationality restriction or those paid roughly the same as some sort of third world person. Even the nationality restriction is overcome by relocating the role to some cheaper location in the same country or replacing long termers with noobs.
Back in CSC time, they even offered people a chance to move with their job to some cheaper location (minus relocation payment), with a salary cut to boot. Obviously only in countries where labour laws allow such things - ie USA.
The formula is = RIF + (Offshore OR Sh--shore) + rehire = much cheaper workforce and Mikey's next ten mill.
You'll learn eventually, Mikey only has one strategy - asset strip.