The third-placed Hawks have won five of their past six matches, and impressed on Saturday night with a 51-point thrashing of Fremantle in difficult conditions at Patersons Stadium in the absence of skipper Luke Hodge.
"It just shows the amount of depth we've got at the moment," Lewis said from Waverley Park on Tuesday afternoon.
"Guys can come in and play their role, and when our main guys aren't playing so well, others step up.
"I think the weather provided us with a real opportunity for everyone to play a part, and I think we adapted to the game style probably quicker and better than they did."
Of the Hawks' four losses this season, one was to ladder-leading Collingwood and two to second-placed Geelong.
But Lewis had no doubt the team could match it with the competition's best if given another opportunity.
"As a group we're super-confident, whoever we come up against," the 25-year-old said.
"We think we've got a game style that matches the best of them.
"The coaches have developed a game style where, no matter who's playing, it'll bring us success, and the guys are just playing it to a tee at the moment."
Lewis admitted that Saturday night's waterlogged conditions had taken a toll on the players' legs.
And despite facing a second straight interstate trip, this time to Launceston to face North Melbourne, the 2008 premiership player was sure the team would be fully recovered by the time it runs out at Aurora Stadium on Sunday.
"We went out and trained today, and your legs feel a little bit heavier," Lewis said.
"[But] we've been training since last November and this is what we prepare ourselves for.
"With the fitness guys and the resources we've got around the club, we're super confident that we'll be right by Thursday for our main training session."
Lewis expected a tough contest from the Kangaroos who, led by young hard-nut Andrew Swallow, have been one of the competition's leading clearance teams this season.
Brad Scott's men are ranked fifth in clearance differential, averaging 2.9 more clearances a game than their opponents, compared to 10th-ranked Hawthorn (-0.3).
"You know what you're going to get with North," he said.
"You're going to get a fierce contest, and we've got to prepare for that."
Swallow ranks second in clearances in the AFL, his 124 this season behind only Western Bulldogs captain Matthew Boyd.
"Obviously he's hard, and he's also a good runner who can kick goals," Lewis said of Swallow.
"It'll be an interesting one. I've never matched up on him, but hopefully we see each other at some stage."
Lewis reported that Hodge should be fit to return from the swollen knee that prevented him from making the trip to Perth, and said Sam Mitchell, who hurt his ankle against Fremantle, was running laps on Tuesday and appeared fine.
Mark Macgugan writes for hawthornfc.com.au and covers Hawks news for afl.com.au. Follow him on Twitter: @mmacgugan