As mentioned by someone else in another thread, if ball security isn't an issue, then why not Denzel Ward? That kid is the fastest player on the team and has consistently shown that speed all throughout the year.
Obviously if he never had any reps during practice then don't just throw him out there, but when Parris was injured Ward would have been on my short list to get some reps in practice. If he's even remotely as good at returning kicks as he is at playing cornerback, then hot damn do we have a dangerous threat back receiving kicks. But that's just my #HotTaek.