I would say the majority of us are not experts, if we were then we'd probably we working within the game in some capacity.
I played the game so I think I know a bit about how the game is played (not at a high level I might add), but I know very little about tactics and the other nuances of the game. I certainly wouldn't to pretend to know more than the manager and coaching staff. There's a lot of discussion about Berge's form at the moment, but despite our view as fans, he must be doing something right in terms of his contribution to the team, otherwise you'd assume he wouldn't be starting every game. Perhaps you could argue there may be political reasons for his inclusion, however I, perhaps naively, presume he's in the team on merit.