I think in terms of expedtiure on transfers and wages what the glazers have sanctioned has been more than suffcient (we are near the top of every transfer net spend and wage list going) obviously the argument is there that the investement has not been there in other areas of the club most notably Old Trafford, but in terms of money spent on players its hard to fault them, how the money has been spent has been the issue.
The Glazers biggest sin though in the post fergie era has been not holding Woodward accountable, not seeing he clearly did not know how to run the football side of the club and not insisting he bring people in around him who could handle that aspect of things.
Do I think the Glazers should with hold funds for the next manger, no that isnt going to make it any better. Then we would just be and under funded badly ran club, in stead of an well funded badly ran club. What the glazers need to do is insist Arnold brings in people who have a proven track record of managing the football side of the buissness.
Of course there seems to be minimal chance that happens we will likley be stuck with people like Murtough and Fletcher, who for all the world just seem like token appointments rather than a clear desire to mend a fundemental floor in the clubs setup.