There's general publicly traded shittery, and then there's WITCH (for reference, WiPro, Infosys, Tata, Cognizant, HCL).
I've seen shitty expense cutting in many publicly traded companies, but there's like this chasm between the norm and industrial grade bullshit.
Usually outside of WITCH or directly WITCH-influenced places (because let's be honest, nobody works in isolation, so the same managerial styles percolate as people move through companies), you don't see being sent people that leave you with feeling that the only qualification they had was that they should speak english according to census data. Even the one polish company that is infamous for trying to repeat similar "success" at least churns and burns mostly CS students (its late founder had a saying that you can replace any specialist with bounded count of undergrads, and that the number is usually 1).
And I don't say it to be mean about the people - they might be highly skilled in other areas, it's that the company has policy of not training them nor supporting them while they churn through them at lowest possible cost, below what I'd call the thermocline of disbelief and shame - disbelief that other company sent someone so unprepared, and shame of the managers who run operations like that.
It's one thing for your typical consulting public company to promise the stars then non deliver, hell I have heard first hand from Accenture exec about problems at intersection of sales, being able to tell customer no, and what is actually deliverable.
But there's a definite difference in degree when the "team" that you supposedly paid for is swapped the instant the ink is dry, only when contract is at risk of dissolution for bad performane slipping in someone who does not require being sent a document that has every mouse click one after another documented in screenshots.