All of that is fair. But while it's encouraging going forward that his offense worked against weak defenses, our defense and running game had enough talent that just about any coach would have won 6 of those games. So looking at just this year, in the 5 games coaching could reasonably make a difference good or bad, his side of the ball was completely inept in three of them. Minimal competency moves the needles in two of those.
So his performance gives reasons to feel optimistic about the future, but that doesn't change the fact that this year was not a good job by him, especially if you are looking judging by wins and losses.