The San Jose Sharks began a roster shake-up on Thursday after their surprising collapse in the first round of the Stanley Cup playoffs.

Sharks general manager Doug Wilson announced that veteran defenseman Dan Boyle will not receive a contract extension and forward Martin Havlat will not be brought back by the team next season.

Wilson also is planning to return Brent Burns to the blue line. He played on a line with center Joe Thornton this season.

Boyle is set to become an unrestricted free agent on July 1. Havlat will receive a compliance buyout or be traded, Wilson said.

The Sharks were eliminated from the postseason after taking a 3-0 lead in their Western Conference series with the Los Angeles Kings. San Jose was just the fourth team in league history to drop a best-of-seven after winning the opening three games.

"You want to be careful not to change too many things, but you better be really careful that you're not just avoiding what really needs to take place," Wilson said. "There's two sides to that. I think what we need to do is much more drastic than just putting a Band-aide on it."

The Sharks made it to the second round of the playoffs in 2013 before they were ousted by the Kings.

Boyle, who came to the Sharks in a trade with Tampa Bay in 2008, had 68 goals and 201 assists in six seasons, becoming the franchise leader in both categories.

Boyle will be replaced by Burns, who had moved to forward after playing as a defenseman for his first 1 1/2 years in San Jose. Burns finished the season with a career-high 22 goals and added 26 assists.

Havlat totaled 27 goals in three seasons with San Jose, which he joined after a trade with the Minnesota Wild for Dany Heatley.

Sharks majority owner Hasso Plattner announced Wednesday that Wilson and coach Todd McLellan would return next season.

"Doug Wilson and I have met over the past two weeks," Plattner said in a statement. "He has shared his support of the coaching staff, as well as his recommended changes to our team's roster, and he has my complete support moving forward."