After their Carabao Cup win, Shakespeare admitted City had been lucky to still be on level terms at half-time and the decision to withdraw Coutinho had helped their cause.
“We led a charmed life in the first half," he said.
“We know that our goal was under threat. I was just delighted to get in at half-time and then even more delighted to see they took Coutinho off.
“That was one of the main contributions to us for the second half."