Bell, one of the all-time leading tacklers in the past three decades of Arizona football, will serve as Arizona's defensive graduate assistant.
A 1999 gradaute, he lettered four years for UA as a middle linebacker from 1996-1999, playing on UA's best-ever squad, the 12-1 team that beat Nebraska in the Holiday Bowl in 1998 when he was named first-team All-Pac-10.
His 139 tackles that year led the league and he was UA's leader his final two seasons. He finished with 405 career tackles, No. 5 on UA's chart.
Drafted in the fourth round by the Seattle Seahawks, Bell played two seasons. He has been training in Tucson since mid-fall.