Derek McInnes has revealed huge frustration at Aberdeen's poor performance at Ibrox.
The Dons manager, who is without eight first team starters due to an injury pile-up, felt his young team showed their inexperience as a streetwise Rangers side gave them the run-around in a painful 5-0 defeat.
Aberdeen were second best from the off as the Light Blues' aggressive press hemmed them into their own half, leaving 12-goal striker Sam Cosgrove an isolated presence up front.
While McInnes conceded that the Gers were on top form, he didn't hold back on his "passive" charges.
"Rangers were very good, and I thought they were allowed to be better and enjoy the game too much for my liking," he said.
"Certainly from when we lost the first goal, you saw the gulf in quality at times and experience.
"It was obviously a good time for Rangers to play us and a bad time for us to play Rangers with the amount of injuries we have got and big Andy Considine going down at the hotel this morning with gastroenteritis and after the travelling and extra-time the other night.
"There was maybe a lethargy about the performance but we were also too passive at times as well.
"We had a very young midfield but I do feel as a team we lacked a bit of personality. I thought we were very young out there and we played that way."
