Chip Kelly's recently-announced coaching staff offers a well-rounded group of football minds with a vast knowledge to share with the San Francisco 49ers.
After digging through each coach's biography, here's a look at some of the connections and numbers that stood out from the current 17-man coaching staff.
2 – The number of coaches who have played in the NFL (RB coach Tom Rathman, ILB coach Hardy Nickerson.
4 – The number of coaches on the staff who have worked with Kelly in the past: QB coach Ryan Day (Eagles), WR Coach Bob Bicknell (Eagles), DL coach Jerry Azzinaro (Ducks, Eagles), special teams assistant Michael Clay (Ducks, Eagles).