Farnsworth isn't a headcase, he's a drunk, and those late nights of his kill him during day games. Take a look at his day night splits
day era 6.25
night era 2.39
At night he is clearly a different guy (maybe cause he slept it off?) This guy doesn't need a change of scenery he needs a schedule change
To the cubs he is worthless because most of their games are during the day, and his trade value has never been lower
if the sox can get hendry to deal with them he would be a perfect fit I think, well as long as he doesn't pitch during the day