Shaduer is the only rookie QB playing that is learning on the fly and has a coach who publicly hates his guts and was actively working on sabotaging his career. Can't really do a 1 to 1 comparison with other rookies based on how the browns and stefanski mishandled this QB situation.
He didn't get any reps in training camp and the preseason or even when he named qb2 after flacco was traded. In fact it came out he didnt get any real practice reps until he took over for Dillion and was named the starter 6 weeks ago. Which other rookie was thrown out there as starter with those circumstances completely unprepared by their coach? Add to that having the worst oline in the league and worst receving core I would say Shaduer has outplayed every other rookie this year.
And remember Shaduer is only in this position cause Dillon got hurt. Not because stefanski actually wanted to play him. The original plan by Stefanski was to not play shaduer at all this season. Then stefanski could draft a QB and cut Sanders and that would be it for his career. Fire stefanski, bring in a coach that believes in Shaduer, Beef up the oline and receivers in the draft, Give him a full off season with reps and practice knowing he is QB1 for the next year and allow Watson to mentor Shaduer as a vet QB2. Thats how you give him fair shot and put the browns in the best situation to improve next year.