Lampard has banned Chelsea's players from talking about the club's transfer embargo as he bids to prevent a lowering of standards at Stamford Bridge.
"I don't want - and I said this to the players the first time I spoke to them - I don't want talk of the ban, I don't want talk of what is success, what might be success, and any lowering of standards," said Lampard, who takes his new team to Manchester United on Sunday.
"I want to set out as we should do. And when I looked around the room I was looking at top players everywhere, and a big squad full of quality.
"Can we remain competitive when we are in this position? I believe we can.
"And we just have to accept that and use the challenge of what we've got and have absolute belief in what we've got because I think with the ban it's been very easy to write off this squad somewhat.
"What matters is how we approach it and if I was a Chelsea manager who said 'I'll settle for sixth place this season or fourth place, or even second place', that's not the mindset."