The 41-year-old from Worksop has watched ISM stable-mates Darren Clarke, Louis Oosthuizen and Charl Schwartzel win majors while the game’s biggest prizes have repeatedly eluded him.
Westwood has eight top-three finishes in majors but goes into 2015 at his lowest position in the world rankings for seven years at No 26.
But Chandler said: “I’m a firm believer that when it’s your day, it’s your day.
“Lee played so well for so long, it’s hard to keep up that intensity. If you look at all the players at the top, there’s not many who haven’t endured dips in form; Tiger (Woods), Phil Mickelson, Sergio Garcia.It’s hard to preserve that intensity.”
But Chandler accepts that his long-time client needs to sit down and plot a clearer route to major success.
“2014 was a frustrating year for Lee,” he said. “I don’t quite know what happened. He lost a bit of focus in the middle of the year and being on the edge of the Ryder Cup gave him the kick up the backside he needed.
“He hits the ball a long way, he’s got his fitness under control, but there’s still those questions about his putting.
“He needs to work his schedule out; how much he plays over here, how much over there.”