Eh. The young guys you want to see succeed (Meidroth, Vargas, Edgar) are succeeding for the most part. What is killing this lineup is Vaughn and Robert. If those two were even...slightly below average it'd look so much better.
I don't know if it's a "huge disaster" if he becomes a successful closer. Far many players drafted far higher have failed way more than that. I trust the Sox with their pitching. The one thing they seemingly get right more often than not.