If changes have been made, or are going to be made, the coach speak answer is going to be "No". If changes are not going to be made the answer is "No". So the answer is "No." We will have to wait and see what happens.
I don't think changes are going to be made because Mac believes things are going in the right direction. The Iowa game is going to be not just another meaningless bowl game. If the Gators bomb against Iowa then there is going to be pressure for changes to be made or the noise is going to get louder than a front row seat at a duck callers' convention. If the Gators win then Mac will feel he has enough rope to continue to hang himself without making changes.
Usually this is the type of bowl game that the Gators bomb. Usually this type of game is seen as a meaningless game for the Gators after losing to FSU and Alabama in another disappointing season. For Iowa it is seen as an important game in Florida for a bland but solid Midwestern program. Iowa sees it another chance to get their program on national TV this time with a Florida and SEC audience watching. Usually the incentive is going to be with Iowa. Usually. But because of the way things have gone down the last few years in Gainesville, Mac and the Gators are going to have to make a stand in Tampa and try to reverse this thing.