And the changes worked wonders as Posh delivered a superb second-half showing to reach the last 16 of a competition which has a Wembley final as a prize.
There were some excellent marks for the players and the manager.
Ratings key: 10-Perfect, 9-Outstanding, 8-Very Good, 7-Good, 6-Okay, 5-Poor, 4-Very Poor, 3-Drreadful.
9.
FLYNN CLARKE: Some fine passes in the second-half and a strong assist for the final goal. Dropped too deep in the first-half 7.
10.
SERHAT TASDEMIR: A quiet first-half, but came on strong after the break. Took his goal - his first for the club - well and should have had a second soon afterwards 7. Photo: Midlands
11.
MO EISA: It was a concern when he fluffed two early second-half chances, but he kept getting in the right positions and was rewarded with two goals. You could see his confidence grow as a result. Also claimed an assist 7.5.
