Kimber recorded 25 tackles and two pass breakups in his first season with the Nittany Lions.
Mack signed with the Nittany Lions out of high school and played in all 13 games in his first season before transferring to Alabama.
John and Lisa Dimakopoulos have sold the Original Waffle Shops at 1229 N. Atherton St. and 1610 W. College Ave. in Ferguson Township to Chris and Michelle Paret.
Buffalo will be Roberson's fourth program in his seventh year of college football.