He is as good as those guys. What did he show in his 3rd, 4th and 5th years to say other wise? I think he is more than capable of that. He's very similar to Mahomes only with a Favre type edge to him. And even if he doesn't have 50 TDs and multiple 5000 yard passing seasons, why does that matter? If he had 4500 yard seasons every year, over 40 TDs a year, who cares?