He started 6 regular season games and he has now started two preseason games this year. He probably played in some preseason games the last two years, but I don't recall. So, that's not close to NO GAME REPS. Beyond that both Fuaga and Hergel have had NO GAME REPS and yet they are not struggling with fundamentals the way that Penning is. It doesn't mean he can't develop and I hope he does, but time is running out for him to do it this year
As far as Marronne, I already gave you that list but you refuse to give him any credit for their development despite the fact that he was their OL coach.
Honestly, at this point I don't know what you are even arguing for or what your position is. You just go off on any criticism of Penning and any time someone suggests that Marronne may not be the worst OL coach in the history of football.