Lincoln City captain Josh Gowling says the players' attitude is not to blame for their poor start to the season.
Saturday's 1-0 defeat by Braintree was the Imps' fourth in seven games in the Blue Square Bet Premier and they have won only once since March.
Gowling told BBC Lincolnshire: "Things aren't clicking at the moment but don't take that as us having a bad attitude.
"It's not us not wanting to work, which maybe it was last year. We're just off it, but it's not good enough."
But Gowling, who joined Lincoln on a two-year contract in the summer, conceded that they performed poorly in the defeat by Braintree, which has left them in the bottom four in the Blue Square Bet Premier.
"It's shocking, not good enough," he admitted. "We didn't work, we didn't do anything.
"Teams are working harder than us, it's work rate, simple as that. We're good players and a lot of us think we're league players but we're not showing anything at the moment.
"We've let the manager down and we've let the fans down. I spoke to the fans after the game, they're not happy about it and I'm not happy about it.
"They're coming all this way to watch us and we're putting in performances like that, it's not acceptable."