Two thoughts on this.
First, it is incredibly difficult to pivot a large organization because there are too many competing interests, too many fiefdoms people have built and too much organizational inertia. A new company has the advantage of a singularity of purpose. Google has to compete with internal interests about AI disrupting search, ad revenue and so on. This can slow you down and limit the resources you get. It's why companies get disrupted, particularly when they reach monopoly status. Steve jobs said it best [1].
Second, Gogole's path here (IMHO) is to make their own hardware. They've already done this with their TPUs but need to be able to compete with NVidia offerings. NVidia controlling the price, features and, most importantly, who gets to buy them is bad for Google. This is what Google should be pouring billions into.
The beauty of this is that success is easily measurable against metrics like price-per-petaflops, performance-per-Watt and so on. Throw money at some key Nvidia engineers and have them design silicon for you for TSMC to fab.
I still believe that Google is positioned to survive the (IMHO) inevitable AI bubble popping.