Regarding Von, I am hoping that he will have the impact that many of us said from day one, would be enough to justify his contract. Meaning, he needs to make game changing plays at critical times in games, and late in the season and into the post-season. So to me, if that means he is used conservatively, but has an impact when called upon, he is earring his keep.
As far as Groot goes, try and enjoy it, and worry about contacts etc, after the season. I have a feeling he will be giving us a good show.