Arsenal were only able to sweep over Tottenham because they were able to control the midfield when they wanted, breaking Spurs' high line.
That, we are reminded, is the Gunners' key to success. Mikel Arteta was instrumental in allowing Arsenal to play positively, while Jack Wilshere and Santi Cazorla drove forward with gusto.
That trio was ably supported by a forward three of Tomas Rosicky, Theo Walcott and Serge Gnabry, but the midfield had to be won before Hugo Lloris' goal could be breached.
Arsenal showed that they can secure the middle of the pitch, which bodes well for the matches against fellow title contenders, which will ultimately decide which side walks away with the championship at the end of the season.