Garry Johnson could do a very good job for you. Honest man, lots of contacts, good manager at this level, not afraid to say it as it is, loves to interact with the fans.
Since leaving us he has had a bit of a mixed time but he is still a quality manager. The biggest problem is you are losing so many games at the moment and all your confidence has gone from the team. Any manager coming in will need a few games to settle the ship, I doubt if a quick fix is around the corner. The unfortunate thing is I doubt if Gas fans will be prepared to give Johnson a few games to turn it around. You would almost certainly turn on him if results don't improve quickly which is a shame as given time he will rebuild confidence and make things fun again.
I liked him as a City manager, he came to us when we were in a very similar position to you but did not get a win for several matches and the fans started to turn on him. We all know what happened in the years that followed and he very nearly pulled off the impossible dream
.
The Gas won't go down, there are teams below who are worse than you are but you may have a squeaky bum for a few months. Give Johnson the job, he will steady the ship, avoid relegation then give you something to build upon for next year.