I'd say a 7. Had some bumps in the middle of the season, problems with the clock and penalties but seems to have gotten better as time goes on. Has handled problems off the field good as well. (Rhodes, Clowney,etc.)
He notices his mistakes and admits to it and fixes, or atleast tries to.
Rookie QB is never easy, and like others said has the team playing tough every week even thought it looks like we are out of the playoffs.
It'd be stupid not to give him time (more then 3 years) and let him bring in more of his guys and put this thing together.