Martin told BBC Radio Norfolk: "We're all behind the gaffer. That still remains the same.
"We've not been good enough. He'll get a lot of stick for that and so will we.
"It's up to us to take some responsibility and accountability for what's gone wrong."
The 27 year old, added: "We're humiliated. What is there to say about that performance?
"You can say what you like about tactics and how you prepare, but the bottom line is, with the exception of [keeper] John Ruddy, because he made some good saves, it was nowhere near good enough."
"I'm sure we're going to take [criticism] all week until the next game."
"When we win we deserve the praise and by the same token after that we deserve what we get from the media, fans and ultimately ourselves. We are embarrassed and hurt."
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