Scoring goals has been the main problem for the Sharks, who are tied for last in the league with just eight wins in regulation or overtime.
San Jose is last in the league in scoring with 2.20 goals per game and is second-to-last in the league with just 42 even-strength goals.
The deal will allow San Jose to dress more offensive-minded Jason Demers and Justin Braun every night, giving the team an additional puck-moving defenseman to help the offense.
"The offense is there. Take a look at our team," Wilson said. "There's certainly players who are not having even average for their career type of years. If they were performing at that level, I think we'd be at a different place than we are today. Hopefully, that will change quickly."
Ryane Clowe, who averaged more than 20 goals a season the last four years, has yet to score this season. Joe Pavelski, who had 31 goals last season, has one goal in his past 18 games. Marty Havlat is on a 15-game goal drought.
Wilson said the blame for the struggles falls on the players not coach Todd McLellan and his staff. He said the Sharks have too often been a "57-minute-a-game team in a 60-minute league."
"Why that execution or why the mistakes that will prevent you from winning games is very frustrating," he said. "Do I think that is coaching preparation? No. I think it comes down to players sticking with it or not altering our approach to a game just because we're down a goal or whatever. We're not the only team going through that."