An agreement to take Smith's former assistant Richard O'Kelly to Villa Park was completed this week, as the duo reunite to take on the challenge in the midlands alongside second assistant John Terry.
Following head coach Dean Smith's departure to Aston Villa, Brentford look set to put assistant Thomas Frank in temporary charge of the team while they search for a long term replacement.
It is eight years since he made his debut for Chelsea, but finally Josh McEachran has scored a professional goal for Brentford in the Championship.
Nico Yennaris captained Brentford at the Emirates Stadium on Wednesday as his side faced Arsenal in the third-round of the Carabao Cup, 18 years after being a mascot for the Gunners.
Danny Welbeck finished off a superb Arsenal team move to score his second goal of the evening.
Brentford player Sergi Canos, formerly of Liverpool, has revealed that he left Liverpool to play more minutes.
We take a look ahead to the EFL Cup match-up between Arsenal and Brentford at the Emirates Stadium.
Championship leaders Leeds United maintained their unbeaten start in dramatic style, while Derby County boss Frank Lampard was sent off.