Brescia president Gino Corioni fears the players will struggle to arrest their slide down the table if things don't change soon.
They currently lie 18th in Serie A and haven't won in the League since September when they put together a three-game winning streak.
"The team is prepared," Corioni said. "It creates chances. But it doesn't get anything for it.
"Beppe Iachini is working well and I believe he can lose until June without risking his bench.
"But he must wake up and I say the same thing to the players.
"Perhaps draws with Inter and Juventus convinced them that they are phenomenal. They make banal and unforgivable mistakes.
"Something has to change. It's not a fitness problem because the opponents end up with cramp, not us. But we dominate and we lose.
"The team needs more concentration and less fear."