Honestly, I blame the inconsistency of success of moore, DHB, Jacoby, Louis murphy, Chaz Schilens etc. on the coaching staff and lack of quarterback.
these players proved their talented, they proved they CAN succeed. But not all players can succeed completely on their own without consistency in coaching staff or without the right guys motivating them- a player like Rod Streater for example I think will succeed regardless of coaching staff.
Look at how a coach like Jim Harbaugh got Alex Smith to play better.
Oakland needs the same thing.
I hope Sporano is the guy to be able to light the fire under the team, unite them and get them to succeed.