Just did some quick math on strength of schedule, which is the first tiebreaker for draft order. The Raiders had a pretty easy schedule, so they "win" the tiebreaker against everyone except the Rams and Jags. Thus, here are the best and worst case scenarios:
Best Case:
Raiders lose to KC
Redskins beat Giants
Vikings beat Lions
Titans beat Colts
Dolphins result irrelevant in this scenario.
Raiders finish 7-9 and pick 12th due to "winning" tiebreaker vs. Redskins, Dolphins, Vikings and Titans.
Worst Case:
Raiders beat KC
Pats beat Dolphins
Texans beat Jags.
Raiders finish 8-8 and pick 17th due to "losing" tiebreaker to Jags.
Best Case:
Raiders lose to KC
Redskins beat Giants
Vikings beat Lions
Titans beat Colts
Dolphins result irrelevant in this scenario.
Raiders finish 7-9 and pick 12th due to "winning" tiebreaker vs. Redskins, Dolphins, Vikings and Titans.
Worst Case:
Raiders beat KC
Pats beat Dolphins
Texans beat Jags.
Raiders finish 8-8 and pick 17th due to "losing" tiebreaker to Jags.