I don't think there was a single thing Gelsinger could have done to jump in on the AI bandwagon, and it was unreasonable of the BoD.
Gelsinger was CEO starting on 2021-Feb-15.
Arc launched in 2022, just when AI was starting to catch on.
And this was on the heels of the NFT scams, which itself was on the heels of GPU mining for crypto.
Arc had poor driver support at the time, and it suffered a major blow due to their global nature.
So, no viable GPU to repurpose for AI stuff.
Intel fabs are proprietary, so not viable for producing AI chips for other companies without a major rework.
The entire lineup of CPUs, that's laptops, desktops, and servers, needed an overhaul. The last guy in charge did a bang up job of wasting time and resources.
Intel managed to pump out a 40TOPS consumer NPU in the same year, 2024, as everyone else in the market did.
I wouldn't be surprised if this decision ends up sealing the fate of Intel.