Just putting this out there [1] - Steve Jobs would have rightfully put responsibility for these design changes under the Chief Design Officer.

"Somewhere between the janitor and the CEO, reasons stop mattering," says Jobs, adding, that Rubicon is "crossed when you become a VP."

In other words, you have no excuse for failure. You are now responsible for any mistakes that happen, and it doesn't matter what you say.

[1] https://www.businessinsider.com/steve-jobs-on-the-difference...