Campbell demanded loyalty from his players. When he left, the loyalty to him didn’t. So Rogers needs to know if the players were invested in ISU or Campbell. Those invested in Campbell are best to be shown the door.
These late entries could very well be happening as Rogers finding a guy and then telling the old player, hey it may. E best to portal because this new guy is going to fit the bill better than you. It may be why we see a slow roll, as the replacements get found, the old guy gets his watch and shown the door.
Also, if you have your agent doing the talking, I dont think Rogers is the type to want to mess with that. He is too busy to screw around with a guy whining his player needs another 10k.