Derby's Mears: West Ham defeat embarrassing, devastating
"The manager told us to take a look at ourselves after the game. I don't think he needs to say anything more.
"I'm devastated. It's my old club, it's 5-0, we're at home and we're bottom of the league.
"We're fighting to stay in this league and it's not going to happen if we carry on playing like that."
The 24 year-old defender moved to Upton Park in July 2006 in a £1m deal from Preston North End.