Probably also a pretty good existing ecosystem of 3rd party contractors and suppliers that support the Intel fabs and would be happy to do business with TSMC as

Probably also a pretty good existing ecosystem of 3rd party contractors and suppliers that support the Intel fabs and would be happy to do business with TSMC as well. edit: also, a minor quibble: I wish we'd get away from calling it "poaching", as if there is anything illegal or immoral about employers competing for employees.