I think the blame is to be spread around to several individuals, but one point that is quite clear is that there has been a breakdown in communication between Duquette and Williams.
Players come up, do well, and then are ignored, become rusty, and are sent down.
Players are traded for and then not played. Players are left on the roster and not used at all. This has to change. I do hope they will bring up some of the young players and play them. There is little future otherwise.