Washington routs No. 18 Boise State in Petersen's last game

Washington head coach Chris Petersen is doused at the Las Vegas Bowl NCAA college football game against Boise State at Sam Boyd Stadium, Saturday, Dec. 21, 2019, in Las Vegas. Washington beat Boise State 38-7. (AP Photo/Steve Marcus)

Pregame fireworks explode before the Las Vegas Bowl NCAA college football game between Boise State and Washington at Sam Boyd Stadium, Saturday, Dec. 21, 2019, in Las Vegas. (AP Photo/Steve Marcus)

Boise State tight end John Bates (85) is upended, after a pass reception, by Washington defensive back Trent McDuffie, center, during the first half of the Las Vegas Bowl NCAA college football game Saturday, Dec. 21, 2019, in Las Vegas. Washington defensive back Cameron Williams is at right. (AP Photo/Steve Marcus)

Washington running back Salvon Ahmed (26) carries the ball past Boise State defensive back Kekaula Kaniho (28) during the second half of the Las Vegas Bowl NCAA college football game at Sam Boyd Stadium, Saturday, Dec. 21, 2019, in Las Vegas. (AP Photo/Steve Marcus)

Washington quarterback Jacob Eason (10) passes under pressure from Boise State nose tackle Scale Igiehon (90) during the second half of the Las Vegas Bowl NCAA college football game at Sam Boyd Stadium, Saturday, Dec. 21, 2019, in Las Vegas. (AP Photo/Steve Marcus)

Washington offensive lineman Nick Harris (56) and wide receiver Aaron Fuller (2) pose with the trophy after defeating Boise State in the Las Vegas Bowl NCAA college football game at Sam Boyd Stadium, Saturday, Dec. 21, 2019, in Las Vegas. (AP Photo/Steve Marcus)

Washington wide receiver Andre Baccellia (5) is pursued by Boise State linebacker Riley Whimpey (44) during a touchdown run in the first half of the Las Vegas Bowl NCAA college football game, Saturday, Dec. 21, 2019, in Las Vegas. (AP Photo/Steve Marcus)

Washington defensive coordinator Jimmy Lake, left, and head coach Chris Petersen lift the Las Vegas Bowl trophy after the team defeated Boise State 38-7 in the Las Vegas Bowl NCAA college football game, Saturday, Dec. 21, 2019, in Las Vegas. Lake is taking over as head coach as Petersen is stepping down after six seasons. (Dean Rutz/The Seattle Times via AP)