Even before the Vegas incident Walker was on thin ice. They recently cut ties with Ronald Curry too.
In the presser Cable spoke highly of J. Higgins and C. Schilens. Also Z Miller has emerged as a pretty good NFL TE. The team at skill position is young.
For all the bad FA moves the Raiders have still maintained to have decent drafts of late. M Bush looks like a potential steal and K Morrison is one of the better young LB's in the NFL. In the end I think that the final judgment will come on the success of the Russell draft.
I know that people around the organization were sold on Macklin, because Al is big on speed guys. I'm not so sure that Crabtree is a burner.