Fisher was 83-23 overall, 48-17 in the ACC, and 5-2 in bowl games and postseason playoff games.
His teams won 3 straight ACC titles from 2012-2014, and the 2013 squad went 14-0 and won the last Bowl Championship Series (BCS) national title.
The 38-year-old Napier is a former Furman quarterback who has also held assistant coaching positions at Alabama and Clemson.
Hudspeth was fired on Sunday (December 3) after a 5-7 season.
On the 11th of December in 2016, he was the head coach at Oregon. Before Arizona's announcement of firing Rodriguez, the last empty seat on the 2018 coaching carousel had been filled on Monday December 18 when Kent State hired Syracuse's Sean Lewis to replace Paul Haynes.
Lewis, a Dino Babers protege, served as the offensive coordinator and quarterbacks coach of the Orange for the last 2 seasons and also worked under Babers at Bowling Green and Eastern Illinois.
The 2017 team was among the preseason favorites to win another national title, but lost starting QB Deondre Francois in an opening-day loss to Alabama. With Fisher headed to Texas A&M, the Florida State administrators needed just 4 days to secure Willie Taggart.
He missed the first two games of 2017 while undergoing treatment for prostate cancer.
Cristobal's promotion by Oregon was somewhat surprising as his only previous head coaching experience was at FIU from 2007-2012 where he was 27-47 over-all, 20-26 in the Sun Belt, and 1-1 in bowl games.
Cristobal is the third head coach of Oregon in 3 years.
Rodriguez was 43-35 over 6 seasons with the school, but just 24-30 in PAC-12 play.
His best year came in 2015 when the Wildcats won the league's south division title in 2015, but lost 51-13 to Oregon in the conference championship game before falling 38-30 to Boise State in the Fiesta Bowl to finish the year 10-4.