As a Marlins fan our worst regular so far has been Giancarlo Stanton. Sad but true the rest of the regulars have been doing pretty damn well, Giancarlo has been abismal.
I think it would depend on how bad the autograph is. I know there are some people here who are perfectionists (and rightfully so in a high end product like this) but a lot of the autos I have seen have very slight damage. Honestly if you tell me my Josh Donaldson autograph is getting replaced...
Jose Fernandez comes back showing no ill effects of Tommy John surgery. Miami Marlins go on to make the wild card and go on to represent the NL in the 2015 WS.