The veteran caddie was there with Tiger Woods for 13 of his major titles. After they had a nasty falling-out, Williams hooked up with Scott and proved to be an invaluable resource helping him get his first.
"His experience is there in these events where par is a good score," Scott said. "He prides himself on keeping his man at par or better, no matter how hard the course is. And we play it in a way according to that. So we're right around the mark. At times when you want to push, he's there to pull the reins in, if need be. He knows it's 72 holes and it can't be won on the sixth on Friday. He's got the big picture in mind when it comes to the 72-hole outcome."
From the looks of things this week, that perspective has certainly rubbed off on Scott.
"Absolutely," he said, "to the point where I think we just walk out there with almost the same mindset now. And it's proven to work, as well. My results have been good the last couple of years with Steve in the big events, and my scoring average has been a lot better."
Maybe the guy at the top of the leaderboard will feel the sort of burden that weighed down Scott a year ago. Westwood has never won a major title, despite being a perennial contender.
Scott doesn't have to worry about that anymore.
"I feel like I've got, well, nothing really to lose and majors to gain," he said. "That's certainly a nice feeling, whereas before in some ways it was getting to the point where you're hoping it was going to happen. It is absolutely a weight off your shoulders to have the first one."
Now, it's time to go back for seconds.
"It would be a fairy tale if that were to happen," he said. "But they do occasionally happen."