DETROIT — For a year, maybe more, North Carolina could feel this national championship coming.

It was a calculated march, and behind the unrelenting play of Tyler Hansbrough, Wayne Ellington and Ty Lawson, the Tar Heels stomped out Michigan State's inspirational run last night with an 89-72 blowout that wasn't that close.

"I felt like it was fitting for us to do what this group just accomplished," coach Roy Williams said.

Hansbrough scored 18 points, Ellington had 19 and Lawson led all scorers with 21 and also had a record eight steals. Now, they and Danny Green can all head to the NBA feeling good about their decision to return to school. They're bringing home Carolina's fifth championship, and the second for Williams.

All those upperclassmen, save Hansbrough, came back in part because their draft prospects didn't look so good. They also didn't want their college careers to end on last year's embarrassing loss to Kansas in the Final Four. That was a dud of a game in which they trailed 40-12 in the first half and Billy Packer was telling CBS viewers it was over.

This time, North Carolina led 36-13 around the time "Dancing With The Stars" was starting on another network. At least nobody knew how that one was going to end.

This game, though, was a slam dunk. Ellington got choked up as he basked in the confetti. Williams gave a shout-out to his mentor, Dean Smith, and he almost started crying, too. Hansbrough was the first to grab one of those "National Champion" T-shirts. Nobody worked harder for it than him.

"Sounds like I made a pretty good decision," Hansbrough said. "Nothing beats this feeling right here."

Likewise, it can't feel much worse for the Spartans (31-7). They never had a chance. They had been on an uplifting run, and the final chapter was supposed to be the national championship. It would, the storybook said, bring the definitive ray of sunshine to a city and state that's been battered by an ailing economy.

Instead, the 90-mile ride home to East Lansing will be a quiet one.

"You've got six NBA players that could be drafted in the first round or early second," Spartans guard Travis Walton said. "You're looking at a team that could probably beat the worst team in the NBA."

The Tar Heels (34-4) were up 55-34 at halftime, breaking a 42-year-old title-game record for biggest lead at the break and setting the mark for most points at the half.

By then, Lawson had already set an NCAA title-game record with seven steals.

"When you play North Carolina, there's nothing you can do," Michigan State coach Tom Izzo said. "Lawson says it all. He does stir the drink."

A pretty strong drink.

This collection of NBA talent was too, too much from wire to wire, from the start of the tournament, to the very end.

Carolina won every game by double digits, something that hasn't happened since Duke did it in 2001.

Lots of basketball fans saw this coming, including America's No. 1 Hoopster-in-Chief.

Yes, President Barack Obama picked the Tar Heels to take it all in his much-publicized bracket.

Meanwhile, Goran Suton led the Spartans with 17 points, and Kalin Lucas, the Big Ten player of the year, had 14.

Michigan State pulled within 13 a couple times late in the second half, and the crowd of 72,922 — mostly pulling for the Spartans — tried to make some noise.

But for most of the game, cavernous Ford Field had the atmosphere of a Lions game, save the few thousand Tar Heel fans whose Carolina Blue team put in a much better blue-collar effort than the team that was supposed to pride itself on that.

"I just don't think we did the things we did all year," Izzo said. "When you say that, you take away some credit from North Carolina, and I don't want to do that. It was a combination of us and them, but we need to take some of the blame."

As for that 98-63 beatdown Carolina put on Michigan State in this same building back on Dec. 3? No fluke. In fact, Detroit might want to give Ford Field a nice, long break. The winless Lions went 0-8 here last season, and there was no halt to the Motor City's misery on this night.

It was, almost literally, over before it began. Ellington had a double-pump scoop layup and a 3-pointer and Hansbrough spotted up and sank a 14-foot jumper — all in the first 4:25 to put Carolina ahead 17-7. It never got closer.

The Spartans, meanwhile, were having trouble simply getting the ball in after Tar Heel buckets, turning it over that way twice in the first 6 minutes, part of a depressing day that didn't do justice to the effort they put in to get here.

"The best team won," Izzo said. "That's an easy statement to make."

Williams joined Jim Calhoun, Billy Donovan and Mike Krzyzewski as the fourth active coach (13th overall) to win multiple titles.

This title came four years after his first championship — and for the first time, with a roster full of his own recruits.

"Roy Williams is not that good," Williams said. "But boy, ol' Roy's got some big-time players. That's what it takes."