I think this is splitting hairs. The fact is our club was not successful (in terms of premierships) in the period 1996-2008.
In the same period, Jake & Marty have also been part of our drought. We can give DCE & Foran a pass as they have at least played in a GF since 2011. For the sake of pure pedantry it could be mentioned that Walker has played more finals games (6) than Turbo (4). Of course, Turbo has contributed much more to our overall success. The main issue with Walker has been the amount of time he's spent off the field rather than his performances on the field. If we wish to point to particular factors contributing to our drought, poor management, including Barratt's recruitment should be cited.