In his final season as a Saluki, Tatum was named Missouri Valley Conference Player of the Year. Along with fellow senior Tony Young and star junior Randal Falker, Tatum brought the team high into the AP and coaches' poll, with a 27-6 record (including the MVC Tournament) and an RPI of #7 in the country, ahead of such powerhouses as Memphis (#8) and Kansas (#11). The Salukis received a #4 seed in the 2007 NCAA Tournament and easily beat Holy Cross in the first round. In the second round, they beat #5 seed Virginia Tech, 63-48, reaching 29 wins on the season. Tatum had 21 points and was 7-for-15 from field-goal range. In the third round, they lost to top-seeded Kansas, 61-58. Tatum shot well late and finished with 19 points.