EUGENE — Four members of Mario Cristobal’s coaching staff recently received one-year contract extensions and raises from Oregon.

Offensive line coach Alex Mirabal, tight ends and special teams coach Bobby Williams, safeties and assistant head coach Keith Heyward and cornerbacks coach Donte Williams all signed extensions through 2021 over the past two weeks.

Heyward, who added the title of assistant head coach when Andy Avalos was hired as defensive coordinator, will earn $600,000 annually through Jan. 2021, up from $450,000 he earned last year and was due to earn this year.

His buyout also increased to 20 percent of his salary, or $120,000, if he leaves UO for another job prior to Jan. 31, 2020, though that is waived if Heyward were to become an FBS defensive coordinator with play-calling responsibilities or to be an FBS head coach. Heyward no longer owed UO a buyout to leave for another job but last year it was 10 percent of his salary, or $45,000.

Donte Williams, Mirabal and Bobby Williams all received $50,000 raises for this year, with the cornerbacks coach also seeing a raise of $100,000 for the 2020 season.

Donte Williams goes from earning $225,000 last year, lowest on Oregon’s staff, to $400,000 this year, when he was originally due $350,000, and $450,000 next year.

His buyout to leave UO prior to Jan. 31, 2020 is 25 percent of his salary, or $100,000, when it had been 10 percent ($22,500) last year but since elapsed.

Mirabal and Bobby Williams will each earn $350,000 annually, up from $300,000, and are now tied for the lowest paid members of Cristobal’s staff. To put that in perspective, 50 of 90 assistant coaches at the Pac-12′s nine other public schools earned below $350,000 last season, according to USA Today.

If Mirabal or Bobby Williams leave Oregon before Jan. 31, 2020 they would also owe UO 25 percent of their salary, or $87,500.