While this might be true, I'd even say a strong probability, it would be due, IMO, to familiarity with the system, players having been recruited for this system, and a coaching staff already versed on life in the SEC. I don't think it is because Dan is a better coach, or that he would be a better coach for us than the current staff going forward.
I think it only safe to say Dan would probably have had a better record this year. I think it's also safe to say Dan would have ****-the-bed at some point this year due to his established coaching (and job-hunting distractions, etc), or Dan being typical Dan. Based on our experience with Dan, I think an honest assessment would show most fans would expect that to continue with Dan. We wouldn't expect to go back to being bad most years, but we would probably accept we had hit our ceiling under Dan, settling for, "consistently better than we've been since McKeen", but very rarely competing for a championship.
With JoMo we don't yet know what, "typical Joe" will be at State, after he's had a chance to build his program. I've been very frustrated by the losses and the way our offense was so anemic. I still believe a lot of this is on Joe not doing as well as he should have, even in his first year. But I'm still hopeful Joe is going to prove able to learn and adjust. I still believe there is real hope for Joe's offense to prove to be much. much better than Dan's would have had he stayed.
I may be wrong on this, but I'm not wrong in saying we really can't yet know. But I do know Dan was a stubborn SOB who made the same damned crucial mistakes every year, rarely seeming to learn from mistakes that would sometimes cost us a win or two. IMO Dan is a coach who greatly enhanced our program, but peaked short of where he should have due to being stubborn, distracted, somewhat lazy in recruiting, etc. He raised our floor considerably, but may have also lowered our ceiling slightly from a potential standpoint. Yes, I know about 2014. I also believe he should have done more that year. He damn sure should have done a better job of capitalizing on our success that year.