There are zero meaningful portal transfers who've left us. These are all process based guys who were either a cancer, have permanent injuries that would impair their ability to play effectively, etc. The OL guys that left were all 3rd string and not going to get better than emergency playing status. Most of these guys had chronic injuries to their shoulders, etc. and quite frankly shouldn't have been offered. They were offered because of stars, their medical's weren't good.
Everyone you see leaving had no shot at PT. Point is, they were processed for better players that the staff wanted.