Susan has been with Rutgers since Schiano took over the program in 2001.
The move makes sense since Susan coached at Bucknell from 1981-90, and recruited Schiano to play at Bucknell.
It will be Susan's second head coaching stint, and he is yet to lose as a head coach. After leaving Princeton after the 1999 season, Susan led Davidson to a 10-0 mark in 2000.
However, the South River, N.J., native returned to his roots and joined Schiano's staff in 2001 as the offensive line coach.
He spent two seasons coaching the offensive line before taking over the tight ends for the 2003 season. After the 2004 season, Susan added the responsibility of recruiting coordinator to his title.
His strong New Jersey ties helped build Rutgers' 2009 recruiting class into the best in school history, and he developed strong relationships with members of the 2010 and 2011 recruiting classes.
A replacement is yet to be named, but Rutgers did recently hire receiver coach P.J. Fleck, who was also the recruiting coordinator at Northern Illinois.
Susan is fourth assistant coach under Schiano to leave for a head coaching position.
Mario Cristobal became Florida International's coach, Darren Rizzi left for Rhode Island (he is now the special teams coordinator for the Miami Dolphins) and Brian Jenkins was named last month as Bethune-Cookman's head coach.