The 25-year-old returned to English rugby this season after spending two years with the Melbourne Rebels in Super Rugby. His decision to return to the Aviva Premiership was partly down to the persuasive talents of Kennedy.
However, the England international was dropped for today's loss to London Wasps after a string of below-par performances.
After the club's Heineken Cup exit, they are now looking to the league but, at the mid-point of the season, they are rooted to the bottom of the table on seven points, with their closest rivals being London Irish on 12.
"It's the coaches decision, but if you can't defend then there's no place for you in Premiership rugby." Kennedy said.
"I expected us to be pushing hard for a top-four position this season, especially with the signings we made in the close-season.
"So what's gone wrong? It's not the ground. It's not the training facilities. It's not the support given to the club in terms of investing in players. Are we being delusional? I don't think so. So it is either down to the players, the coaches or a combination of them both."