Before a record Sun Life Stadium crowd of 80,120 that definitely included more green than crimson, Lacy ran right through the Irish and their Heisman Trophy finalist Manti Te'o on a 20-yard touchdown run before the game was 3 minutes old, capping an 82-yard drive that was longest of the season given up by the Fighting Irish.
It would only get worse. Alabama marched right down the field on its second possession, this one a 10-play, 61-yard pounding that finished with McCarron completely faking out the defense and lofting a 3-yard touchdown pass to Michael Williams, standing all alone in the back of the end zone.
On the first play of the second quarter, T.J. Yeldon powered over from the 1 to make it 21-0, the finish to another impressive drive - this one covering 80 yards - that included two long completions by McCarron. First, he went to Kevin Norwood on a 25-yard gain. Then, he hooked up with freshman Amari Cooper for a 27-yard gain to the Notre Dame 6.
By that point, it was clear to everyone that Notre Dame's hopes of winning its first national championship since 1988 were all done. But Alabama just poured it on.
Lacy's 11-yard touchdown reception with 31 seconds left in the half left the Irish fans shaking the heads in disbelief, while the Alabama faithful broke out that familiar "SEC! SEC! SEC!" chant, as if to let Notre Dame know that it may have turned things around under third-year Coach Brian Kelly, but isn't yet ready to compete with one of the Southern powerhouses.
Alabama made it 35-0 on McCarron's second touchdown pass of the night, a 34-yarder to Cooper without a Notre Dame defender in sight.
The Irish finally scored late in the third quarter, a 2-yard run by Everett Golson that served no other purpose except to end Alabama's remarkable scoreless streak in the BCS title games, which stretched to 108 minute and 7 seconds - the equivalent of nearly two full games - before the Notre Dame quarterback fought his way into the end zone.
Good thing a four-team playoff is coming with the 2014 season.
Alabama and the SEC have come to dominate this system. Florida began the unprecedented streak in the 2006 season, and added another crown two years later. LSU and Auburn have also won titles during the run. But Alabama is the top dog these days.
The only BCS title game that was more of a blowout was USC's 55-19 victory over Oklahoma in the 2005 Orange Bowl, a title that was later vacated because of NCAA violations.
About the only time Alabama stumbled was when McCarron had a miscommunication with his All-American center, Barrett Jones, in the closing seconds. The fiery McCarron shouted at Jones, who just shoved him away. But as the seconds ticked off, they were right on the same page, hugging Saban and celebrating another title.
Notre Dame made tremendous strides under Kelly, going from unranked in the preseason to the top spot in the rankings by the end of the regular season. But that long-awaited championship will have to wait at least one more years. Golson completed his first season as the starter by going 21 of 36 for 270 yards, with a touchdown and an interception. But he got no help from the running game, which was held to 32 yards - 170 below their season average.
Kelly had vowed this was only beginning, insisting the bar has been raised in South Bend no matter what the outcome.
No one sets its higher than the folks in Tuscaloosa.