The problems are obvious. The solutions are not.
I might try:
More designed runs for Taylor, like QB draws, read options and maybe even QB sweeps.
More reverses and screens to Tate, who can run after catch.
A limited package for Peterman, who is a better scheme fit, to play 5 to 10 plays per game. It will open up a part of their current playbook that they just can't use right now and will be helpful keep opponents off balance. It will also help to evaluate Peterman and give him experience.
1 or 2 gimmick plays per game, like a flea flicker or throw back pass, to try and get a big play and reduce the need for a long drive. I would probably avoid fake punts because those can hurt the defense.
3 or 4 all streaks type plays where they go deep to try and stretch the defense regardless of coverage. Maybe the get lucky, maybe they don't but at least they put in into the defense's minds and if it's intercepted then it's probably as good as a punt.