I like J. Crew. I never shopped there in the classic era, as I was a broke grad student then. Now I turn to them for coats and fun prints, and occasionally to Factory for some deals.
That said, they've had some curious design choices in recent years (anyone remember the embellished lama sweater?), and I can see how some of the more outre stuff, along with declining quality may have alienated their previous fanbase.
The problem is that, as other mention above, the declining quality issue is more widespread than J Crew and not going away any time soon. So if this was a move to fix their problems rather than a personal choice of JL's, it's probably not going to do much.JL was there during the more classic era, too. I will be glad if they stop styling the models to look like her, though! Not everyone can rock her style.