The coach Helly worked with in the off season was in concert with Flats, and no NHL level coaches work with players in the off season, so players need to find their own off season help. When Helly won the Vezina he went out of his way to thank Flats and say he couldn't have done it without him. Also, everyone of our recent backups has been over performing expectations, after joining the Jets. Also interestingly we had a complete regime change at the NHL coaching level except for the goalie coach. I'm guessing Bones liked his work and Helly wanted him to stay.
I believe people were on Flats early on because we had really bad goalies he couldn't magically wave a wand and turn into good goalies. And, no one actually knows what really happens with the goalie coach and his goalies so they just threw things at the wall. But, I'd be curious if there is actually something that Flats does or doesn't do that you believe makes him a good or bad goaltending coach. We do this continuously around here for Maurice and he is no longer even with the organization.