Garrett just stands on the sidelines and doesn't call plays for defense or offense. (Even though I believe he influences had the offense is ran at times). So, that's less of an excuse not for him to make sure that the special teams are up to par. When a head coach really doesn't try to get into the details of game planning and just goes along for the ride, then it leads to the team being unprepared coming out of the gate.
I believe that Garrett's job is on the line for every single week for the rest of the season and another loss or 2 before the season ends will get him fired or at least fired as soon as week 16 ends, if Philly wins the division. Will Garrett still play scared and Conservative knowing that his job is on the line and how will the players play for him when his job is on the line.
If Garrett can't get it done then I expect Urban Meyer to be one of Jerry's biggest contenders for the job.