As well as the fans it's having a connection with the players too. He goes into clubs and doesn't care about the squad he inherits until he gets it how he likes it. Whether that be players he thinks can play his way or to remove the loudest voices like the older heads, or if his remit is to lower the wage bill. The kind of character he is he doesn't really dress it up and when you're not winning and you've got him staring a hole into your soul then there's not a lot of fun going on.
You need time to get all that up and running and you've got to be effective at managing and motivating the players you have until you can get there. And time is the one thing you don't get now. If he lasts at Charlton he'll eventually get a squad together like he did at Oxford and Lincoln where he uses his Prem U21 contacts to bring in younger players with more energy who he can have run around a lot. Those lads like him as he'll give them a platform to show what they can do and he likes them because they're eager to learn so will listen. But I would think if you're a Charlton fan you're expecting your club to be run on a better basis than that. Appleton's method is better at a league one/two club who want to make cost savings and aren't expecting too much.
Critchley won the big one against him at Wembley but in the league game head-to-head he's struggled in all three so far when Appleton has made subs that have changed the outcome every time. I'd be wary of that if he lasts as far as this weekend just as much as I'd be wary of them being shackles off if he goes this week.