He isnt, his involment might be signing deals off but he dosent evaluate players. Dont forget one of the reasons that made his time as owner so hard was having to pick up the mess Johnson played, one of the biggest errors of judgment then was the owner not buying Flo, a player the manager wanted, the result was the manager resigned.
If managers and DOFs are telling Bill he wants a particular player its up to him to sign it off, which he does and he has been blamed for it, Bill is doing the right thing, let the manager do his job, left the DOF do his job.