Apparently Casher really liked it here. I know it's a business and the writing was on the wall when he pitched well enough for a losing team. But still.
From last year to this year, Cashner figured out how to induce ground balls again in a juiced ball, hitters park. Ks are up and BBs are down. Someone from the old regime probably screwed him up last year. ERA and FIP are pretty close.
If the Red Sux don't want him down the road, wouldn't mind bringing him back on a smarter contract.