If they're dumping him, I hope it isn't for no apparent reason. They clearly brought him on board as a kind of replacement for Ward. He was mostly harmless, quite likable and both the character as well as the actor had quite a bit of room to grow. Not sure why they (apparently) tossed him from the regular cast. Maybe there was a scheduling conflict and they'll explain it in-universe saying that was off on an undercover mission and will surface with a critical update, mid-season?