The Cowboys reached the postseason for a second successive year with a 12-5 record, setting up a Monday Night Football showdown with the Bucs at Raymond James Stadium.
Cowboys owner and general manager Jones has given head coach McCarthy his backing ahead of the playoff encounter.
When asked if McCarthy could pay the price for a defeat to the Bucs, he told 105.3 The Fan in Dallas: "No. I don't even want to ... No. That's it.
"I don't need to go into all the pluses or minuses. I've got a lot more to evaluate Mike McCarthy on than this playoff game."
There are doubts about defensive coordinator Dan Quinn's future after he was approached by the Denver Broncos following the firing of Nathaniel Hackett.
Yet Jones is not contemplating the prospect of any members of his coaching staff moving on.
"I can't tell you how much confidence I've got in Mike and our coaching staff of being on top of where we are with this team right now," Jones said.
"They've got every nuance. They understand every frailty that we might have or we might have shown Sunday [against Washington].
"They've got everything in their grasp and in their understanding, and I have complete confidence in this coaching staff. It's outstanding. We've got a great chance to go down there and have success."