Well, as an ex-Store Manager, there are always things that at times you dont want to deal with etc. Thing is the clue is your title "Manager".
If you cant manage, and you are not prepared to upset the apple cart at times, then clearly you should not bein that position. Sorry to sound harsh but thats the reality.
Bosses will only then blame you for "lack of management" or "poor performance". At that point, rightly or wrongly, you have to decide whether they have to go, or you go for not dealing with the issues or ignoring them or felling a "grass".
Those people dont pay your mortgage, your cars, your holidays-your company does.You dont have to love ya colleagues just work with them
If they are not delivering then, as much as you might get on with them or have a few beers or they have 10 kids and a mortgage is irrelevant.