Josh Johnson should be gone, but health permitting, Hutchison should be part of the plans to replace him. Drabek could be in AAA as depth, although I wouldn't count on him, he was pretty bad before the injury. Nolin and Stroman, if he pans out as a starter, could also be in AAA to start the year as depth as well. So at least depth would be in better shape.
The top of the rotation would still be iffy. Like you say, Dickey may never pitch like an ace again and Morrow is unreliable, but I don't see them realistically getting anyone better so it would be Dickey, Morrow, Buehrle, Hutchison and Happ unless RR figures things out. So basically, I don't think much can be done unless they're able to make trades, hopefully for younger pitchers with upside.