What happened is they fired tens of thousands of their workforce. They knee-capped themselves. Having people with experience and institutional knowledge is required. You can't just toss that out the windows and expect things to work.
You need to add tsmcs employees to the amd and nvidia counts since intel is a foundry. +82k puts it around equal.
Now intel isn’t doing as well on the chip design side as amd or nvidia nor as well on the fab side as tsmc but i suspect that’s on leadership thrashing constantly like it is more than anything else.