is there any chance of single manager managing two teams
There could be, if Aggz and Andrin Issac back out and no one declares interest in managing their teams. But that courtesy is likely to be extended only to people with teams based in countries outside the European "Big Three" in Ireland, Netherlands and Scotland. I suppose that makes you a good contender for managing two teams if you're interested in doing so.
TBH, it's quite disappointing to have to do that in the first place. I would have thought, given this league's history, and given everything I've done to bring this thread back to life over the past week or so, that this would at least generate enough sign-ups to fill 16 teams. It's a good thing I didn't go with 20 as I was originally planning to.