Bentley spoke to Radio Lancashire after the game and seemed to think his side deserved at least a point.
"I'm fuming with the lads and I'm sick of saying the same thing. We've been beaten by the odd goal in a game that we should have taken something from.
"We lacked a little bit of know-how today and, in the second half, we were a little bit off it.
"If we're going to improve, we need one or two more leaders that will make sure you don't lose games like that", he said.