Not sure how much of a chance there is but from the KU connections area, it'd be great to see Jerrance Howard get considered (or the previously mentioned Norm Roberts). He's known as an elite recruiter. He was an assistant at Illinois (alma mater) for five years, a year with Brown at SMU, then joined Self (his coach at Illinois) at Kansas. Almost certainly going to stick at Kansas unless a head coach spot opens up since he's with his former coach at an elite school but he's what the coaching staff could use - a proven high-major recruiter.
Other names that I've seen listed by numerous sites as good assistants and/or good recruiters are:
Matt McMahon (Murray State) - knows area, regarded as a good recruiter
Jim Fox (Davidson) - knows NC, strong recruiter, good success at school
Steve Forbes (Wichita St) - great recruiting at Tennessee and Texas A&M, helped UT to postseason success
Tim Fuller (Missouri) - strong resume post WF, numerous mentions of strong recruiting, would he return to his alma mater (again)?
Not sure their feasibility but they both seem like they can recruit and have a good amount of experience to compliment the rest of the staff, which is noticeably pretty short on experience.