These were supposedly smart business people. You are always in danger when you outsource something that should be your core competency.
Apple learned that lesson a decade ago. If you look at the post Steve Jobs Apple, they brought more in house - retail, chip design, software, and rumors are they are trying to bring screen design more in house. Anything else, they try desperately not to depend on one supplier - commoditizing their compliments. (https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/)
Apple learned that lesson a decade ago. If you look at the post Steve Jobs Apple, they brought more in house - retail, chip design, software, and rumors are they are trying to bring screen design more in house. Anything else, they try desperately not to depend on one supplier - commoditizing their compliments. (https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/)