UNC has been waiting to atone for last year's Elite Eight loss

CHARLOTTE, N.C. -- Ty Lawson said a few of his North Carolina teammates had nightmares after the Elite Eight loss to Georgetown a year ago.

Tyler Hansbrough said the reason a few of the potentially NBA-draft-ready players returned to North Carolina was because of that loss.

Tar Heels coach Roy Williams said he's convinced the defeat by Georgetown in the Meadowlands was the main motivation for his team in the offseason.

First, the Heels had to get back to the Elite Eight in the tournament.

On Thursday, they did that by slugging it out with No. 4 seed Washington State for a 68-47 victory at Charlotte Bobcats Arena.

Now what?

Go win.

There's really nothing more for the Tar Heels to do but win Saturday. They can't reach the Final Four and chase the coveted national championship that Hansbrough said he so desperately wants unless they get past the Elite Eight.

That's it. They have thought about the chance to play in this game for a year now. Memphis and Kansas enter Friday's Sweet 16 games in the South and Midwest regionals, respectively, in similar situations. Both teams lost in the Elite Eight last year and, as with North Carolina, their teams returned mostly intact with a few players spurning the lure of the NBA draft for a chance at a Final Four.

"A lot of us were never satisfied with the full season last year," said Hansbrough, ESPN.com's Player of the Year. "We definitely had goals that weren't accomplished. We had unfinished business."

Williams said he can't think of another player who wants a chance at a title as much as Hansbrough does. It's hard to argue with that, considering how much passion and purpose Hansbrough has played with this season.

The top-seeded Tar Heels (who had the same No. 1 seed a year ago in the East) lost two games this season -- both at home. They had to play six games without Lawson because of a sprained ankle (they went 5-1 without their starting point guard). They had to find a way to win close games against Clemson (twice), at Duke, at Florida State and over Virginia Tech in the ACC tournament.

Quite frankly, they earned every bit of the home-state advantage in the NCAAs. Their first two tourney games were in Raleigh, and now they'll play for the Final Four here in Charlotte.

"It's been brought up a lot to get back here, especially early in the season," Wayne Ellington said of the 96-84 loss to the second-seeded Hoyas a year ago in the Elite Eight. "We've got to win, we've got to win and do what we've been doing all year."

One thing the Tar Heels haven't had is an issue with scoring. For the most part, save the first nine minutes, when they had only 10 points, that wasn't a major problem against the Cougars. But their much-maligned defense -- which worked so well in beating Duke and in late-game situations against Clemson -- was there again Thursday night.

Washington State coach Tony Bennett said after the game that he was happy with the Cougars' defense, which held the Tar Heels to 68 points, down from the 89.9 points a game they averaged during the season or the 100-plus they had put up in the two previous games.

The Cougs couldn't make key shots, making just 2 of 16 3s and just 31.6 percent of their shots as they scored a season-low 47 points.

"We were in there for a long time and hung tough, but we made a lot of mistakes," WSU senior wing Kyle Weaver said. "We fought, and I'm happy about that. But we let them get some easy ones in the flow."

Thursday night, the Tar Heels showed why they might be better prepared to advance to the Final Four this season than last. Coming off the bench, Alex Stepheson blocked three shots, proving how formidable the defense can be for UNC. Hansbrough had no field goals in the first half, yet the perimeter shooting of Ellington, Danny Green and even Lawson (they combined to make all five 3s for the Tar Heels) to end the half was enough to push the Tar Heels to a 14-point lead.

"We're more focused this season, hungrier, and we're closing out games better than we did last year," Hansbrough said.

The numbers for this squad are staggering as the Heels approach the Elite Eight: They've won three NCAA games by margins of 39, 31 and 21 points; they've won 35 games so far and are 21-0 in games played away from the Smith Center (13-0 road, 8-0 neutral).

But none of that matters to the players -- at least not now -- if Carolina yet again can't get past the Elite Eight. There is no certainty that this squad, even though none of the major players is a senior, would return for yet another run.

"It's always on my mind," Hansbrough said of getting to a Final Four for the first time in his three years at Carolina. "It's one of those things that every college player wants to do and experience. It's certainly something I want to have."

Well, he and the Tar Heels have their chance -- again. That was the yearlong first step. Now, the second step is quite simple: Go win.

Andy Katz is a senior writer at ESPN.com.