Jamiel is right: DL is putting their new Business Elite-equiped 777s on their most competitive and popular routes. For example, ATL --> LGW - DL competes with BA who also uses a 777. ATL --> FRA - no 777 on this route yet but it will happen soon - DL competes with LH on this route to Germany. CVG --> LGW - no competition but apparently it is a profitable and popular route for DL.