Michael Skubala says the onus from his team must remain on themselves as City enter Saturday's home game against Fleetwood Town four games unbeaten and following three successive clean sheets.
1-0 victors at Burton Albion last weekend, having had 10 men for 70 minutes of the match, Skubala believes the Imps must stick to their core principles as they host Charlie Adam's side, who have won their last two games.
He said: "I know Charlie Adam is doing really well and they've turned a bit of a corner, but if we perform right, are competitive and go after them hopefully we can exploit their weaknesses as well.
"If we play well on our day, I feel we can beat anybody. We have to look after our performances and not worry about other teams at the moment. Every game has a different story and it's important we keep churning out good performances."
Ben House came on as a substitute early in the second-half of last week's victory, returning from five months out injured.
Skubala added: "When he came on, I think you saw what he brings and what we've missed. It was a tough situation to come into but he did really well, working very hard up front on his own.
"The conditions were really heavy on the day, and we've had to manage him this week. We need to make sure we don't overload him too early with minutes, but we have strong competition for places."
There was also praise for experienced centre-back Adam Jackson, with the 29-year-old recently chalking up his 100th league start for the Imps.
Skubala said: "He's great around the lads, is a calming influence and a great professional. He's a leader and gets in good positions, which is something the coaches work on with him every day.
"We try to improve all the individuals every day, and there is strong competition for places.
"Everybody to a man has done well. We've tried to be aggressive and that aspect of not conceding in three matches is a positive."
Skubala also revealed Jack Burroughs has suffered an ankle injury and is expected to be out for around four weeks.