He answered, "No, why?" to the question by a New Zealand reporter of "Warren, is this the most pressure you've been under as Wales coach?", but responded when it was pointed out that he had lost two matches in quick succession which had resulted in the post mortems with: "Yeah, well that's the nature of the beast isn't it? Look, I said to you there were a lot of positives out of Saturday and we took a bashing after Tuesday. Was that the best rugby decision? Absolutely.
"Tuesday was about exposing players and the future for them and the development of the game. We know we were taking a risk doing that and you pay the price don't you."
Asked how openside flanker Warburton was feeling in preparing to start his third game in eight days after having not played for six weeks due to a shoulder injury, Gatland said: "He's pretty excited about it. I asked him how he was today and he said 'pretty good'.
"He knows that in the past he's been wrapped in cotton wool and he said he feels he has to front up. We're expecting a high-tempo game on Saturday and we have to make sure we're able to cope with that."
Gatland has replaced the injured wing George North with fullback Liam Williams, one of his best performers at Eden Park. Wearing the No 15 jersey is 23-year-old Rhys Patchell, who has played two tests.
The only other change sees lock Bradley Davies dropped to the bench and replaced by Luke Charteris, the team's captain in Hamilton on Tuesday.
Roberts, who tried but failed to make much of a dent in the Chiefs' defence, said: "It was quite an embarrassing defeat for us and an embarrassing performance.
"Coming off Tuesday, we owe the jersey a game there's no doubt about that. The lads who wore the jersey on Tuesday let the jersey down, really. Being part of that squad too, it wasn't good enough."