Not sure if anyone has played through a dynasty to the end yet, but I was really surprised when we finally got to the end of year one in my other online dynasty. First off, the day where the servers were down (Sunday I think) it totally screwed us...we had people that won their bowl game come up with losses, which shot their coaching prestige down. Then, when you get to the offseason you have a few choices. First, you can resign with your team or you can look for a new job. Well, you can only pick from a small handful of offers as most of the good jobs have been picked over.
Example: I was playing Arizona's DC on Heisman level and did pretty good. We lost to USC and Oregon, but flat hammered #3 Stanford and won the games we should have. Went to a bowl. I met all but two goals in my contract, and they were very low in importance. What do I get? A D+ ranking, and the best I can do is go become an offensive coordinator for a couple of two star programs (Arizona is three star), go become the DC for Baylor (again, two stars) or stay with 'Zona. Plus, all the members in the dynasty pick in an order of some kind...it starts with the commissioner and then goes to the next player like a draft. You pick jobs that way on a first come first served basis, which is kinda crappy. Lastly, all the "good" jobs are already show as "filled" without even having the option to chase them (if you had a much better rating). It's really odd. Suffice it to say, it would seem if you go the route of turning the coaching carousel on and start on a low prestige team you had better be in it for the long haul because you'll be slugging it out on the lower ranks for AWHILE.
It's not like I was trying to turn one year of successful defensive coordinating into a head coaching job at Penn State or Notre Dame. But, it would be nice to move from that to a head coaching job at, say, North Texas or FIU. Something head coach related. I think that's totally unrealistic to say "Yeah, all you can do is be a coordinator again" if you put together a very solid single year of coaching. Someone, even a lowly team, would give you a shot as a head man. Just my 2¢.