Yeovil goalkeeper Josh Wagenaar was sent off seven minutes from time
Yeovil assistant boss Nathan Jones says the squad will be put through their paces after humiliation at Brighton.
Having lost 4-0 to Leeds earlier in the week, the Glovers were overwhelmed 5-0 by an Albion side managed by former Glovers boss Russell Slade.
"I've never ever been involved in two games in a week like that. I'm hurt and I'm embarrassed by the team's performance," Jones told BBC Somerset.
"Some things have to change and, believe you me, something will change."
Jones took charge on the bench, with player-manager Terry Skiverton returning from injury to start in a defence that has now conceded 10 goals since Yeovil last found the net themselves.
Skiverton is still waiting for his first win after six games at the helm and the club are sliding perilously close to the relegation zone, now just one place and three points off the drop.
When Slade left, after winning his last four games in charge, Yeovil were eight points clear of relegation.
Jones conceded: "Embarrassing is the word, and you can put that as the headline if you want.
"As professionals, if you get beat 4-0, and comfortably beaten 4-0, then you have a reaction. You come in, you graft and then whatever happens, even if you're not having the best of games, your opponent knows you're on a backlash of a 4-0 win.
"But it was easy [for Brighton]. Russell had about 16 or 17 players playing for him.
"You can prepare people, you can do tactics, you can do set pieces, you can run people through and coach them, get them training well and enjoying their training.
"But if they go on the pitch and do not really want to play for you, then I don't know.
"I'm shell-shocked. I've never been involved in anything like it in my whole life."
Next up for Yeovil, who already have the second worst goal difference in League One, which could count against them in the relegation shake-up, are third-placed MK Dons, who hit six past Oldham at the weekend and boast the best goal return in the division on their travels.
And Jones promised the squad a hard day's work when they returned to training on Monday.
"There's a lot of work to do, but at the end of the day you have to want to play, you have to want to graft, you have to want to fight for the badge and for your shirt and you want to have to go through brick walls, through your opponent if you have to, and work until you can work no more.
"That's how you get results at all levels. They wanted it more than us. I don't know if it was the occasion, a freak result or whatever.
"Nothing happened that we hadn't prepared them for. They are regimented and prepared and I think it's a lack of real desire. Brighton wanted that game more than we did."
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