Weekend Homework: Roy vs. Cal

After a one-year hiatus, North Carolina and Kentucky renew their rivalry in Chapel Hill on Saturday.

Ol' Roy versus coach Cal.

One embraces the past. One constantly chases the future. They do things differently, but their contrasting philosophies often end with the same results.

Since the 2008 season, North Carolina’s Roy Williams and Kentucky’s John Calipari have won a national title and coached in two Final Fours. Williams also has reached two Elite Eights to Calipari’s one during that span, but UK ended the Heels' season in the 2011 Elite Eight. (Both also finished at least one humbling season in the NIT.)

The Tar Heels, who lead the all-time series 22-13, have a “White Out” promotion planned. Williams is too old school to go along with the theme by wearing a white suit. But that doesn’t mean he's outdated.

Perhaps that's what provoked UNC assistant coach C.B. McGrath, filling in on Williams' radio show Monday, to go on a rant reminding listeners of Williams' achievements at Carolina.

"Coach obviously has done a great job, with Twitter and this kind of stuff now, it's all about self-promotion," McGrath said. "Coach doesn’t have a Twitter account, he's not going to brag about himself."

Never mind that Calipari has his own website and Twitter account while Williams would like to retire never knowing what it's like to maintain either. Or that Williams once starred on his high school square dance team while Calipari once welcomed Jay Z into his locker room. Or even that Calipari's rosters tend to turn over from the exodus of players to the pros while Williams likes to add pieces each year to build a contender. When the teams meet at 5 p.m. ET in the Dean E. Smith Center, it's not a matchup of whose style is right and whose is wrong.

Williams and Calipari will have more in common than many realize. The Heels and Wildcats have both been a bit unpredictable this season.

Carolina players are still adapting to playing without P.J. Hairston and Leslie McDonald, who are still awaiting word on their eligibility. Their highs have included wins over Louisville and Michigan State, but their lows came in losses to Belmont and UAB.

UK assembled arguably the best freshman class in history, but relying on freshmen -- no matter how talented -- comes with some inconsistency. Earlier in the week Calipari said his team was so young, he had to teach them how to huddle. The Cats' losses were to ranked teams in Michigan State and Baylor, but they've still struggled to find their groove.

The team that wins Saturday will be one step closer to finding it.