Goode kicked 17 points against his former club as Wasps enjoyed a 22-12 win over the Aviva Premiership champions at Adams Park, with Christian Wade scoring the game's only try.
Young feels that Goode answered a number of his critics with the display and that it shows that he still has a lot to offer, despite being 33-years-old.
"Andy was outstanding as he steered the ship and kicked the important goals," Young told the press. "A lot of people have knocked him this season but he showed today why I wanted him to join us.
"I never thought the game was safe until three or four minutes from the end. We made it difficult for ourselves in the second half as we allowed them to gain field position.
"Our defence for the 10 minutes that we were down to 14 men, when Carlo Festuccia was sin-binned, was crucial and the difference between winning and losing."
Wasps travel to Gloucester next weekend.