The supporters were not happy to see Lucas Bergvall come off in their eventual 2-1 win over Coventry in the Carabao Cup.
Spurs were behind late in the game, but rallied to go through thanks to a Brennan Johnson last minute winner.
Asked about his subs, Postecoglou stated: “I don't make substitutions by poll, mate.
“So, I'm sure the fans have got their own opinions, but yeah, Lucas, like I said that's his first sort of significant game time for quite a while. What I didn't want was us pushing guys over the edge today, that's why we took Destiny off at halftime as well.
“We already had a couple of injuries, and I had some pretty good players on the bench that I thought could make an impact, but it doesn't take away from Lucas's performance. I thought he was outstanding tonight.
“They're going to play a lot of football for us and hopefully getting through tonight, whether it's 90 minutes for Archie or you know, 60, 70 for Lucas, will put them in a good space.”