Averaging 5.0 YPA isn't efficient at all.
The offense was entirely on TT, and he managed to get a single first down in the first half. I'd call that disappointing.
We couldn't run worth a damn, and he still only attempted 25 passes. Most of them well short of the sticks. He had some accurate passes to WR's on 6 yard routes on 3rd and 8, but that's not "good" efficiency, it's Trent-like efficiency.
It all comes out in the wash.