Jones: Garrett's job not in jeopardy
The winner of Sunday night's clash at MetLife Stadium will win the NFC East and host a playoff game the following week, while the loser's season will end.
Jones said any idea that the second-year coach could be fired is "just ridiculous," adding that the franchise is "just getting started" with Garrett as the head coach.
Even if the Cowboys were to be blown out by the Giants, Jones said his stance will not change.
"We're going to answer this thing as many ways as you want to answer, with as many circumstances," Jones said on his weekly radio show on 105.3 The Fan in Dallas.
"His job has no bearing and is not a part of this ballgame. Yes, he's going to be our coach next year, period. No matter what the score is."
Garrett is 8-7 in his first full year as coach of the Cowboys after replacing Wade Phillips midway through last season.
The former offensive coordinator has guided quarterback Tony Romo to a career-high 102.2 rating this season, and the team ranks ninth in total offense.
The Giants won the first meeting in Dallas 37-34 in Week 14, rallying from a 12-point deficit in the fourth quarter.