Tibesar joins the Boilermakers after spending the last three seasons in the Canadian Football League with Montreal.
Cornell Jackson is in his fourth season as running backs coach. He was named to the position Jan. 25, 2009.
In 2011, Jackson's rushers averaged 181.6 yards per game in 13 contests, the highest average for a single season at Purdue since 2005. The Boilermakers finished with 16 different players attempting at least one rush for the year, including eight that rushed for 100 or more yards.
Led by Ralph Bolden and Akeem Shavers' six touchdowns apiece, Jackson's group accounted for 22 rushing scores in 2011, the most by a Purdue team since 2007. Bolden led all rushers with 674 total yards on 148 carries, while Shavers earned Little Caesars Pizza Bowl MVP honors after running for 149 yards on 22 carries against Western Michigan. For the year, Purdue rushers lost merely three fumbles on 535 carries.
In 2010, Jackson spearheaded a rushing attack that finished with over 100 yards in 10 of 12 games, including a school-record tying five consecutive games with 200 or more yards on the ground.
Ralph Bolden just missed rushing for 1,000 yards during the 2009 season, finishing with 935 yards after missing most of the season finale at Indiana with an injury, and was named second team All-Big Ten. He became the first Purdue running back to be so honored since Mike Alstott in 1995. Bolden rushed for 234 yards against Toledo on Sept. 5, 2009 - the third-most in school history.
Jackson came to Purdue from Kansas State, where he spent the 2008 season working with current Purdue defensive coordinator Tim Tibesar and the Wildcats' linebackers.
Previously, Jackson had stints as running backs coach at Baylor (2007), New Mexico (2005-06), Washington (2004) and Arizona State (1996-99). In 2006, Jackson coached first team All-Mountain West Conference selection Rodney Ferguson, who rushed for 1,132 yards in leading the Lobos to the New Mexico Bowl. The year before, DonTrell Moore earned Mountain West Offensive Player of the Year honors after becoming just the sixth player in NCAA history to rush for 1,000 yards four times in a career. At Arizona State, where he worked with current Purdue defensive line coach Kevin Wolthausen from 1996 to 1999, Jackson tutored five running backs who went on to be selected in the NFL Draft and two - Terry Battle and J.R. Redmond - who earned All-Pac-10 recognition. During Jackson's four seasons, the Sun Devils played in three bowl games: 1996 Rose, 1997 Sun and 1999 Aloha.
Jackson coached at Washington for three seasons, beginning with the linebackers in 2002 and followed by the safeties in 2003. In addition to coaching the running backs in 2004, he had additional duties as recruiting coordinator. Jackson was with the Huskies when they lost to Purdue in the 2002 Sun Bowl.
In 2000 and 2001, Jackson coached the linebackers at Houston. One of his players, Wayne Rogers, was named the Conference USA co-Defensive Player of the Year in 2000. Jackson also worked with the linebackers at New Mexico (1995), Pacific (1992-94) and Utah State (1990-91).
Jackson began his career as running backs coach at Butler County (Kan.) Community College in 1987, then moved to Central Missouri State as a graduate assistant working with the defensive ends in 1988 and 1989.
Jackson has taken part in four NFL internships - with the San Diego Chargers (linebackers) in 2004, Denver Broncos (running backs) in 2001, St. Louis Rams (running backs) in 1999 and Seattle Seahawks (linebackers) in 1993.
A native of Jackson, Miss., Jackson (born Sept. 28, 1960) played defensive back at Hinds Junior College in 1982 and 1983 before moving on to Sterling (Kan.) College, where he was a two-time all-conference defensive back. Jackson earned his bachelor's degree in health and physical education in 1986. His wife's name is Lorri.