He started with Rich Rods system but wants to base what he does from the passing game. Despite it being a 'spread' the passing game is a layered west coast attack.
Here is where it has failed at times ( alabama , SC , all the times we got behind by several scores ) . Dobbs, is not consistent at intermediate routes...which is the nexus of the west coast. The defenses can then crowd the box . The power running game does not take shape because we are never in 'power; ...there are more defenders than blockers in the box.
Since the SC debacle..they have been keeping 6 blockers and using an H back ( 7th blocker or receiver ) and running actual power plays . They are running 3 receivers rather than 4. The H back is used as a classical TE , blocking and slipping out on routes. Dobbs seems to grasp this more. It is in effect the I form with Dobbs in the gun .
Rich Rods system is great but would not hold up to the penetration of SEC defenses . If they can block it , it is successful ...but it wont sustain against a good defense ( see Michigan results ) Butch's original system suffers from much of the same issues . You have to keep the blockers in in the SEC . Hopefully Butch will build off of what he has done the last few games.