Every time I watch The Godfather I feel a little bad for Paulie.
He is quickly suspected of treachery, just for being sick the day of Vito Corleone's failed attempted murder. The result of not being able to work was his replacement by incompetent Fredo.
I know it's a common trope in these movies that they don't believe in coincidences... but what if?
Is there some elements that prove that Paulie really sold the Don? Isn't the job of Corleone Family's HR to replace a sick driver by another competent man?