Scott should be along shortly with the correct answer. In the mean time, being a tracon guy, all I can offer is that DACOS is a fix on J78 in ZID airspace (38-12-15.170N / 084-14-27.750W). Whether it has lent its name to a position at ZID, I can't say.
Dave
Edited to say, "Obviously written at the same time as HW's answer"