BwayDreamer: Directors stop in ALL the time to see their shows. Why would they care once they've moved on? Because its their name in the program. They are often involved in all recasting choices.
Sure, when they are out of town or the country, they aren't likely to do so as frequently...but those directors send in trusted people to check in on their behalf.
There is a story about Les Miz (the original run), but I cannot vouche for its truth. The ensemble/cast was reportedly looking bored and phoning it in, Nunn (or a desginee) heard the rumblings and dropped in unannounced and fired a huge number of the ensemble as a result. Again, I cannot say for certain this is true - but I was made aware of the story as I had just seen the show and commented to NY friends of mine how the show seemed too tentative and a bit "off", and heard the mass firing had only recently happened and much of the cast I saw was brand new.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.