"It's just a massive disappointment and we've got to question ourselves," the 32-year-old told
BBC Radio Manchester.
"It's about going out there and doing what you're supposed to do and we're clearly not doing that."
The former England winger continued: "It's not about tactics or gameplans or anything like that. It's just old school, about who wants it more, and they [London Welsh] just seemed to outmuscle us.
"Even giving away the bonus point at the end, it shouldn't come to that, but it's just simple things like understanding the game and how to play the game. We're just nowhere near."
The high-profile arrivals of international players such as Danny Cipriani and Richie Gray, the appointment of director of rugby Bryan Redpath, as well as their move to the Salford City Stadium, raised hopes that the Sharks could improve on last season's sixth-placed finish in the Premiership.
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