I'm not sure there's a good answer for the problem, maybe there's one that's better than others, but not a good one. There are 3 years of HC experience on this entire staff, 2 for Tony Hughes @ Jackson St (which was a disaster, they were 9-19) and 1 for Mason Miller at McMurry University that has 1,145 students.
I'm a big fan of Arnett as a DC, but, I have immediate heartburn turning a multi million dollar program over to a HC that's never been in the saddle before. He just graduated from college himself in 2009 and has not played or coached anything but defense and certainly hasn't done any of the "CEO" type work required of a HC. I've been around him on multiple occasions, he is one intense dude, even when relaxing he's intense. He's hard to read, to get to talk to even. I don't see him sitting in a living room convincing a mother to let him lead her son or making the alumni circuit patting backs and shaking hands. Everybody has to start somewhere I know but this is a big important step for him and us. If he doesn't work out (which I think we would know very soon) you are starting all over again which is tough. If you go out now and hire an experienced guy, they too are starting over and that's tough.
Like I said there's not a right answer, only a best one, and I don't know what that is