There's no question UCF is losing a lot in senior linebackers Terrance Plummer and Troy Gray. The intangibles are equally as valuable as the tangibles for Plummer and Gray, who are both known for their fiery, vocal leadership. Plummer, voted the defensive MVP at the 2013 Fiesta Bowl, led the team this season with 92 tackles and earned national defensive player of the week honors for his 17-tackle performance against BYU. The experience of Plummer, a three-year starter and middle linebacker, will be hard to replace in O'Leary's base 4-3 defense. Junior Domenic Spencer filled in for Plummer at middle linebacker a few times this season and played in 10 games this season. Redshirt freshman Chequan Burkett junior transfer Errol Clarke rotated in the will linebacker position this season and will both return. Interesting enough, one of the brightest linebacker talents is freshman Jordan Franks. Due to the lack of a strong pass rush presence, coaches rotated Franks to the defensive line to gain some speed on the edge. He played in all 12 games this season and could return back to his true position in the offseason. Sophomore Mark Rucker also saw considerable time this season on special teams and played in all 12 games.