I think it's a pretty safe statement to make that Kodak made bad mistakes on the 'big picture' choices it made, about what to do and how to pursue those goals.
Focusing on printers -- maybe not so smart. Making digital cameras that never captured the consumers' imagination or market share? Big mistake, also.
Any business can only withstand so many blunders. Nothing against Mr Perez personally, but performance matters. With that record, I'm surprised he's still there.