Has less to do with running up the score, and more to do with doing something your coach told you not to do. That's the worst part about it... Jameis is doing things that he's not responsible for, and having others face the backlash for it. Accountability ain't never been his cup of tea.
He'll get a job, but he played for $4M this year. He'll likely be playing for less than that this year.
I would argue in this case its bad sportsmanship, considering the only reason you're doing it is because you were so inept offensively throughout the year that you couldn't get a RB on a TD in 18 weeks. Then you have to wait until the other team stops trying to get him one. Makes you look as weak as you already were.