If you were Pat, how would you have gone about pursuing the foundry business? What would you have done differently and what would you have done the same? Would you have gone for a split sooner?
Just a few top of mind thoughts.
Be more incremental about fab development, rather than dramatically over-spending on CAPEX.
Design a process for specific target customers, rather than try to force-fit them into processes designed for x86 CPU requirements. Build an internal team with deep (meaning multi-generational) experience using TSMC as a foundry (Intel has/had numerous people like this) to be a voice of the customer, and develop customer-driven capability requirements for IFS. This team should also develop the required IP porting strategy in phases, and recommend target customers based on the phasing of the IP strategy. (Perhaps IFS has done this, but I haven't seen/heard of a hint of it.)
Build the best PDK team possible based on requirements from the voice of the customer team. Develop a communicated PDK roadmap.
My thought for a while now is that I probably would have investigated starting with Intel 3 or Intel 4 rather than 18A for foundry customers. 18A looks too aspirational for the most likely early foundry customers, and Intel 3/4 is at least more mature.
Have IFS marketing pick out some potential small to medium scale foundry customers and make them offers they find difficult to refuse, to essentially buy foundry learning experiences for the Intel teams. Experience with real external projects is critical, IMO.
Not hire 20,000+ additional people.
Stop hating accelerator chips when that is where key customers are going (especially cloud customers). Place high priority on being a better chip development partner to cloud computing companies. (The IPU fiasco with Google being a bad example.) If you're not an indispensable partner to cloud computing companies designing their chips your future is limited.
One more little thing, not be such an egotistical embarrassment in the media.