We might be able to do better, but our best chance to do better is probably Glenn and he is interviewing with all 6 teams. There is a reasonable chance we don't get him and while I have some trepidation in hiring a retread, Kingsbury has a pretty good chance to succeed as a HC. I mean, his years in Arizona weren't really "bad". He was building the team before they had one bad year with an injured QB and I think he took the blame for a bad owner.
I would prefer the offenses that Brady and Moore run, but I'm not sure either of those guys are cut out to be head coaches where as we know that Kingsbury is really at worst and decent HC and could turn out to be great if he can learn from the job he had in Arizona.
The truth is I don't think this is a particularly great group of coaches to pick from outside of Ben Johnson and maybe Vrable. And Johnson still has to prove he can transition from OC to HC. Glenn is probably the next best and he has to prove the same thing. And, while he does appear to be a leader of men, Glenn would not be bringing an amazing defensive system with him. He's a good DC, but not really great which is what you would hope for on one side of the ball for your HC.
After that it's just a bunch of young OCs and Kingsbury. Either that or a bunch of retreads that have failed at one or more jobs.