Good questions.
Personally, I called out the OL before the game, and IMHO, that is our problem. I said that if they couldn't open up run lanes for Ajayi, it would impact our entire offense, and that was the key to the game.
We could not open up run lanes against the Jets physical front. Once again, our finesse style of OL was straight stonewalled by the big strong Jets front and their new high quality safeties. No run lanes = no run game. No run game = stifling defense on our receivers ... and a mediocre pass game.
Without a run game, we are a poor offense. IMHO, we need to put more emphasis on getting/teaching guys who have the power and technique to move DL. I was excited about Isaac Asiata for exactly this reason. But we stayed with weak guards, couldn't generate any run game, and looked like we always do against the Jets defense... underpowered.
Unless they just flat out give up or are injured accross the DL or simply make a ton of mistakes ... our scouts/coaches simply do not value having effective run blocking guards. We are solely built to beat the Patriots, which we are lucky to do even once a year, and not built to even compete with the Jets and Bills who are where we should be getting 4 division wins a year if we are smart.
Start Asiata. Live with the growing pains. Have an answer for big strong DL.