Terry was asked about whether Mourinho made mistakes with certain talents during his second spell at the club.
But Terry believes Mourinho took decisions that he believed were the best for the team at the time.
"Now they were very talented but very young individuals as well. But Mourinho didn't have time to put them in the team or take out a Duff or Robben because we was winning every single week and his job is on the line.
"So, like I said before if you come in and you are 10 or 20 per cent below the standard of Duff and Robben who were scoring 20 goals a season each. You are not gonna make that team, no chance.
"Fair play to them they've gone away elsewhere and proved they're good enough but at that present time they wasn't good enough for Chelsea ."