Earlier this week, we looked at the 2009 recruiting class' biggest surprises and biggest busts, and colleague Jake Trotter tackled 2008 last week.

You guys loved it. It's still a little soon to make generalizations about the 2010 class just yet, but you wanted more, so let's take a look back at 2007.

Here's half of the Big 12. We'll look at the rest later this week. (Note: Players who signed and did not academically qualify are not eligible.)

BAYLOR BEARS

Best surprise: "CB" Elliott Coffey. Coffey signed with Baylor as the nation's No. 84 cornerback and a middle of the road recruit for Guy Morriss. By the end of his career, he'd gained almost 60 pounds and was a versatile linebacker at 235 pounds and the leader of the Bears' defense as an All-Big 12 talent.

Biggest bust: WR Romie Blaylock. He was the highest-ranked recruit who made it to campus for the Bears but managed to have negative receiving yardage in his true freshman season. He eventually moved to cornerback but made just one start and eventually transferred to Midwestern State.

IOWA STATE CYCLONES

Best surprise: OL Kelechi Osemele. This wasn't a very strong class from Iowa State, but Osemele, the nation's No. 149 tackle from Houston, blossomed into a three-year starter and an NFL draft pick who started for the Baltimore Ravens and won a Super Bowl ring earlier this month.

Biggest bust: QB Philip Bates. Bates lost a quarterback competition to Austen Arnaud and transferred during his sophomore season, eventually landing at Ohio where he played quarterback and receiver. The Omaha native was Iowa State's highest-ranked recruit and the nation's No. 76 quarterback.

KANSAS JAYHAWKS

Best surprise: OLB Justin Springer. Springer was rated higher than just two of KU's high school signees in the 23-member class, but he emerged as a starter and a team captain as a senior in 2010, helping KU upset the ACC champion Georgia Tech and winning the Big 12's Player of the Week honor. The California native was unranked as a recruit.

Biggest bust: RB Carmon Boyd-Anderson. The Jayhawks' signed the Jacksonville, Texas native as the nation's No. 71 running back and the second-highest rated recruit in the class. He played sparingly as a freshman before transferring before the 2008 class when it was clear he had fallen down the depth chart.

KANSAS STATE WILDCATS

Best surprise: DE Ralph Guidry. He was the nation's No. 150 defensive end in an average class for K-State and came to K-State at just 235. He was all the way up to 290 pounds by the end of his career and was a two-year starter at defensive tackle who notched more sacks than all but one Wildcat in 2011, when K-State won 10 games and reached the Cotton Bowl.

Biggest bust: S Lamark Brown. Brown was the class' highest-ranked recruit as the nation's No. 19 safety, but he played exclusively offense in Manhattan and never caught on. He switched positions twice but never had more than 215 yards receiving and transferred to Minnesota State Mankato in the summer of 2010.

OKLAHOMA SOONERS

Best surprise: "RB" Travis Lewis. The top of Oklahoma's class in 2007 was loaded, but the nation's No. 86 running back made a huge impact after a redshirt season. He led the team with 144 tackles and won Big 12 Freshman of the Year. He topped 100 tackles two more times in his career and became the first player in Oklahoma history to lead the team in tackles in four seasons.

Biggest bust: S Desmond Jackson. Jackson was the class' second-highest rated recruit, behind only the late Austin Box. He was the nation's No. 16 safety but never started a game and made just 13 tackles before transferring to Tarleton State.