I think he did the best he could considering the circumstances. I was concerned by the lack of running game for Montgomery. They also didn't take any deep shots. However, in order to do that, you need time to throw, which he didn't have. Jenkins was playing his first game in over a year. They didn't seem to call many plays that fit Justin's strengths like bootlegs. It is also concerning some of the coaches decisions like punting on 4th and inches. Fields also didn't seem to be in sync with his receivers. Getting concerned about Kmet. Robinson clearly checked out. Mooney must lead the league in tipped receptions leading to interceptions or however you want to describe it.
From here on, I just want to see the rookies continue to show progress and growth.
Remember, it took Peters about 4 games or so to get into game shape. I imagine something similar for Jenkins. With that being said, I don't think we will know what we have in him until next year.