This coaching staff has to be in the running for youngest in the country. No one over 37 I believe.
Ages of the new staff:
John Griffin 37
Matt Griffin 33 (turns 34 in May)
Branden McDonald 33 or 34
Jess Flannery 26 or 27
While this staff is young, Pat Flannery's staff was significantly younger when he took over as head coach. And the average age of Dave Paulsen's assistants was younger than that of the new staff as well. Two of ND's assistants were under the age of 30 but one was a lot older.