Little early to lump Jimmy Smith in with those guys considering the amount of time he has spent on the field. He showed some improvement in my opinion. Made some mistakes but was better.
The rest of that bunch Cody, Kruger, McPhee, Art J etc.... that is a combination of factors in my opinion. These guys are role players IMO being asked to do to much cause of losses to FA, injuries etc. That said, its also true you should expect to get more out of 2nd round picks in Cody and Kruger than role players but thats exactly what they are.