Mark Crossley says Notts County's current lack of confidence was reflected in today's performance at Cambridge United.
The assistant manager saw his team lose 4-0 at the Cambs Glass Stadium and afterwards admitted he had 'never been as low' during his 30-year career.
He said: "You can see the lads are really, really low in confidence. We tried to pick them up through the week but you could see in today's performance it's been a bad two months for everybody.
"Again, we can't legislate for ridiculous errors. I've never seen four worse goals.
"But I won't give up. I'll keep trying and so will the manager who, as you can imagine, is very down.
"He's a very proud man - very honest - and he's feeling as though people at Notts County are being let down at the moment."
Crossley indicated that Notts loanees Aaron Collins, Louis Laing and Vadaine Oliver would not be retained as he and Sheridan prepare to make changes to the squad this month.
And, when asked what he would say to the 360 travelling supporters who witnessed today's defeat, his answer was simple.
Crossley said: "From my point of view: 'Sorry.' That's all I can say.
"The travelling fans of Notts County are absolutely first-class - they keep coming despite what they've seen.
"Hopefully they will keep supporting us and we can turn it around because they deserve better than what they're getting."