ATLANTA — How will Jordan Spieth improve upon one of the greatest seasons in golf? A clue could be found on the seventh hole Sunday here at East Lake Golf Club.

Walking off the tee box after making back-to-back bogeys to fall into a share of the lead at the Tour Championship, an out-of-sorts Spieth received a pep talk from his caddie, Michael Greller. “No more talking about anything that just happened,” Spieth said Greller told him.

Spieth’s facility at putting the past behind him, and Greller’s ease in steering him back on the right thought path on those rare occasions when he doesn’t, are reasons for optimism that Spieth, 22, can build on a season in which he won two majors and five tournaments over all, ascended to No. 1, captured the FedEx Cup title and locked up Player of the Year honors.

“Jordan’s always been good about blocking out the past and being able to not look into the rearview mirror too much, whether it’s positive or negative,” said Greller, who offered two examples.