I'd keep Hughes. I know Stevenson's scorching hot right now, but I'd take Hughes. He's long-term and you know he'll be getting the minutes. Stevenson's a streaky player, and he's just on a streak right now. At some point he'll start cooling down. Meanwhile, Hughes is a proven player, so you know what he could do. You know he's capable of producing a monster line. Besides, Stevenson's only good for threes and points. Add him if you're lacking on those cats. If not, keep Hughes. He contributes on every cat on a good night.