Sheffield coach Chris Wilder: Some of the players have to leave

The Blades lost 2-0 to Southampton on an evening where they only had two shots for goal and neglected to use their 1-0 win, with 10 men, against

Aston Villa

in midweek as an impulse to move forward. 

With most of the first picks for the defense line unavailable, Wilder finds it difficult to get results, especially after

Phil Jagielka

's suspension, which gave the United manager a headache for reshuffling players.

"We've got to do so much better, there's so many things we need to address," Wilder told 

.

"It needs a bit of a shake-up in terms of a few bodies going out, a few bodies coming in, we need to keep our best players because I do believe when I've got Berge back, Basham back, Egan back and O'Connell back, that plays a huge part.

"There's a couple that need to go at the end of the season, I'd like to shake it up quicker but the rules and regulations for that now don't allow me to. The hand I'm given at the moment is a pretty tough one with some of the players we have to go with.

"We have to, as I've talked about, regroup and go again, but it's a tough gig and it's a tough gig this afternoon."

The changes made the Blades' individual blunders worse, prompting the two goals they conceded, which might have been more if

Aaron Ramsdale

was not made various great saves after Che Adams scored the Saints' second goal.

"We didn't deserve anything from the game," Wilder admitted. "We had more of the ball than we've had for quite a while, but second half the second goal killed us.

"We had possession at the top of the pitch, it comes back, and a lack of quality, a mis-timed tackle, we give it away again - it's another one of three, four and five mistakes. You can't let one mistake go to another, and we've done that too many times. I don't really have an answer for anybody, any of the players.

"Yep, we've opened up, they could've taken us from two to three to four, Aaron's made sure it hasn't happened, but we have to be at our best, full-tilt, the best players have got to be playing to the best of our abilities."

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