Hi Az,
I know what you mean about starting over, somehow it's just not the same. I would think if the player file is still invalid then it's not going to load (though don't take that as read, I am far from certain on that - a post in the technical questions area might help with that) Normally the player file is ok, as if you have a crash, the game saves often so loads up previous save, all you tend to lose is anything you were doing at that moment. I wonder though, whether the game was saving at the moment it crashed, hence the invalid file? Hopefully you can find some work around via the tech help.
As to the dynasty, it's a tough one, you've put such a lot into this in terms of background etc, that it would be a shame to lose that. Maybe you can just restart from the beginning of the season (maybe with breaking news that the Yankees have been contracted

) rather than start from scratch?