Any other center have problems with sups constantly working? I'm talking going into trucks rearranging shelves, stacking boxes outside trucks as well as the preload sup in the unload sorting and putting boxes on the belt. Today a sup was stacking boxes for someone because they were piling up on the stop bar. I asked For a Grievance and my center manager came up askin why i was filing for. I've talked with my stewards and nothing just seems to be getting done. Wondering if anyone has had these problems before and how you handled it. Sups shouldn't be doing anything right?