I don't know how the process works. Maybe the organ donor company sends in a heart with her name on it and the doctors just plop it in. You'd think there'd be some safety check though:
Is it a heart? Check
Is it alive? Check
Is it intact? Check
Is it O+? . . .
Whether it was donor company or doctor, it still a big mistake.
Also, the second transplant (new new, if you will) came in relatively quick. Did that happen because someone realized their mistake?
Donor company: Oops our fault, we'll send you a new one right away.
Doctors: Get on the phone and tell them we'll pay 10x the price for a new one NOW!
Maybe it was a whole bunch of stupid little screwups that added up. Like those movies where you're thinking, "If Robert had just told Amy that he ate her sandwich, WW III would have never happened."
Oh, hell. What's the use. We'll never know.