Listened to the podcast with Alex Mirabal and Josh Darrow last night and he talked about how Mario hires people that he knows and then you hope they work hard for you because they're connected to you and not the program.
Would be shocked to see another hire that doesn't link to Mario personally. His go-to guys on staff were also quoted as being Mirabal, Dennis Smith, Pata, Cody Woodiel, and Juan Navarro. Basically all tying back to FIU days. Guidry tied back to FIU - he was going to hire him right before he got let go and to Dennis Smith as well as they're good friends.
That obviously points to guys like Coley and Arroyo but another one is Tim Cramsey who is at Memphis. A guy from the Chip Kelly tree that has actually done well on his own.