Sherwood has taken aim at Levy and his players since defeat to Chelsea last week.
He said: "I'm never going to take a step back. I'm just going to shoot from the hip. That's what I'm like.
"I don't think I'm upsetting him. Daniel has known me for a long time and knew I wasn't suddenly going to turn into a mute, it wasn't going to happen.
"He knows the character I am and knows what he's getting. He's getting honesty. He gets a little bit more as well.
"Do I have his full support? I think so. I'm planning for next season. It's no good me planning for next season if someone else is coming in.
"I've not asked for any assurances. I've an 18-month contract and I expect to be here a lot longer than that."
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