Brian Daboll actually did a pretty good job.
Here are the guys I know of who are available:
1. Gary Kubiak. No brainer. If he will take the job, you give it to him. You trip over your own feet rushing to give it to him.
2. Kyle Shanahan. Heard the interview 'did not go well.' He has run a WCO offense with similarities to Mike Sherman's in the past. Could be a decent hire.
3. Norv Turner. Say what you want, but Norv is a good OC and I wouldn't mind seeing him come back to have that job here again. He does not run a WCO.
4. Rob Chudzinski. Same as Norv, good OC but doesn't run a WCO.
Then you could look around the league at other teams' QB and WR coaches and see if they are open to be interviewed.
As far as the Dolphins staff, the only real candidate I know of is Ken O'Keefe. He was the OC at Iowa for like 12 years before coming here. I can't say I am familiar with Hawkeyes football, but everything I've heard from people who follow that school has been overwhelmingly negative.