David Weir gave an honest assessment of the Blades plight following Saturday's loss at Carlisle United.
The reversal at Brunton Park is United's fourth consecutive away loss in League One this term and Weir admits he is worried at a return of just four points from seven league matches.
Speaking after Matty Robson's decisive goal for the Cumbrians, the Gaffer said:
"We are very dissapointed, frustrated and ultimately we are left questioning ourselves.
"What is said in the dressing room will stay in there, but are trying to get to the root of the problem and I have asked the players for their thoughts.
"As a group we are always honest with each other and we continue to strive for that improvement, but at the moment it is very hard and everyone is hurting.
"At the present time we are suffering at both ends of the field, we are conceding goals and aren't scoring enough in reply, fundamentally there is a problem and as manager it rests with me.
"This is a real low point, we have a big challenge in front of us now and I am looking for everyone to react positively.
"At this point we could either back down or stand up and face a situation like this and personally I will always stand up and remain strong.
"We will have another painful week following another defeat, the supporters will be angry and rightly so, I genuinely have sympathy for them at the moment."