The Oakland Raiders have announced the additions of tight ends coach Bobby Johnson and assistant special teams coach Tracy Smith to their backroom staff.
The franchise has also confirmed that running backs coach Bernie Parmalee and wide receivers coach Rob Moore have joined Jack Del Rio's ranks.
New coach Johnson has experience at the Detroit Lions, while Smith had previously plied his trade with the San Francisco 49ers.
Del Rio was brought into the Raiders as head coach from the Denver Broncos earlier this month.
