Scott Spratt of Sports Info Solutions and Aaron Schatz of Football Outsiders discuss the 4-and-0 Bengals.  Does DYAR show that Andy Dalton has made improvements?  Does the team's undefeated record mesh with their DVOA standing?  Speaking of DVOA, the top four DVOA teams are well clear of the rest of the field.  Aaron explains how rare that is and what the implications of that gap are on Super Bowl chances.  Finally, the two talk breakouts players in DYAR, which include Devonta Freeman in Atlanta, Larry Fitzgerald in Arizona, Eric Ebron in Detroit, and many others.