Assuming Röhl doesn't leave before Saturday (personally hope/dont think he will), only one thing we can do as a fanbase really, and that is to make sure we aren't completely silent and create the atmosphere we know we can.
I dont think Röhl has even experienced (at home, away is different) even 50% of the atmosphere we are capable of (i.e. Peterborough etc). All we can do is show him what he would be throwing away, and we know he cites the home atmosphere as having the potential to be better.
That said, it's really tough to change, especially at 12:30.....ideas on a postcard?