LOL, too early to say. No one ever really doubted the Physical Skills. It was the personality defect everyone was trying to avoid.
He will need to be able to start until it is contract time before we can see if he is an actual player or just another fucked up egocase being dragged in front of us to torture the media with horrible subhuman quotes about "getting paid what he is worth," until he ends up on another team that can regret it when the Sex Scandal comes out.
It will take time to see if he is Deshaun Watson or Eli Manning.