The Switzerland international capped off the scoring with a stunning 30-yard strike in what was just his second appearance since January having struggled with a calf injury.
"[Walters and Crouch] have done fantastic for this club for many, many years. You know what you're going to get, they understand what's required when they are called upon. That was the key from my point of view," he told reporters.
"We needed their guile and understanding and they affected it exactly how I thought they would. The icing on the cake was Shaqiri's goal which was a fantastic strike and capped off a really good individual performance.
"He's all power and strength and muscularity. He's a technician as well, it's all about his technical ability and ability to pick the right amount of swerve, cut and whatever else he does. It's a fantastic goal. I was pleased with him because he's had a tough time with injuries."
The win saw Stoke end a four-match losing streak and climb up to 11th in the Premier League table.