I just simmed a whole season where my number 4 QB (not even on the depth chart) took at least half of game snaps during sims. This doesn't seem right. I checked game plans and nothing there said bring in QB from off the depth chart as backup or anything. It is not, however, giving me problems with morale on the two non-starters ahead of him on the depth chart.
Seems like a possible bug or error of some sort. Thought you should know this can happen.