The Nets are yet to win away from home this season, and face two more away games before returning to the Barclays Center to face the Portland Trail Blazers next Monday.
The small forward told the team's website: "You figured the sense of urgency would be there. I didn't have it and I don't think it was down the line. It's obviously got to change."
Jason Terry added: "It's about finding out who we are and what we have in this locker room. Like I said when it started, it looked good on paper. But can we figure it out as a group?"
The Nets face the Phoenix Suns later today.